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- <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Problems</title><meta name="generator" content="DocBook XSL Stylesheets V1.73.2"><link rel="start" href="index.html" title="jEdit Frequently Asked Questions"><link rel="up" href="index.html" title="jEdit Frequently Asked Questions"><link rel="prev" href="plugins.html" title="Plugin Questions"><link rel="next" href="appendix.html" title="A. Contributors"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Problems</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="plugins.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="appendix.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="problems"></a>Problems</h2></div></div></div><p>This section deals with problems you may experience while using or
- installing jEdit. Problems that aren't OS specific are listed under <a class="link" href="problems.html#general-problems" title="General Problems">“<span class="quote">General Problems</span>”</a>.</p><div class="qandaset"><dl><dt>1. <a href="problems.html#general-problems">General Problems</a></dt><dd><dl><dt>Q: <a href="problems.html#id2554067">jEdit won't start. What should I do?</a></dt><dt>Q: <a href="problems.html#id2555342">After jEdit starts, I can't see all of the plugins I
- have downloaded. How can I make them appear?</a></dt><dt>Q: <a href="problems.html#id2555409">During an editing session I get an error message about
- an “OutOfMemoryError” while working with a
- large file or performing a lengthy operation. The message
- reappears every time I retry the operation. How can I
- prevent this?</a></dt><dt>Q: <a href="problems.html#id2555518">My textarea gets confused about the end of the buffer or in some other way corrupted (the characters are in the wrong place on the screen) every now and then. What
- should I do?</a></dt><dt>Q: <a href="problems.html#id2555556">Why is jEdit's window movement and resizing so
- buggy?</a></dt><dt>Q: <a href="problems.html#id2555596">What should I do when the installer displays the
- message, No such file or directory?</a></dt><dt>Q: <a href="problems.html#id2555646">After downloading
- jeditXXXinstall.jar (the
- XXX represents the version number), I
- tried to run java
- jeditXXXinstall.jar, but got the error message,
- Exception in main(), NoClassDefFoundError: jeditXXXinstall/jar.
- What am I doing wrong?</a></dt><dt>Q: <a href="problems.html#id2555708">jEdit crashed the JVM, what gives?</a></dt><dt>Q: <a href="problems.html#id2555737">Why is jEdit so slow to start up?</a></dt><dt>Q: <a href="problems.html#id2555802">Why is jEdit so slow?</a></dt><dt>Q: <a href="problems.html#id2555834">Go to left/top/bottom/right docking area does not work
- for some plugins?</a></dt></dl></dd><dt>2. <a href="problems.html#macos-problems">Mac OS Problems</a></dt><dd><dl><dt>Q: <a href="problems.html#id2555874">Why are the tabs for docked windows blurry under OS X
- 10.2?</a></dt></dl></dd><dt>3. <a href="problems.html#unix-problems">Unix/Linux Problems</a></dt><dd><dl><dt>Q: <a href="problems.html#id2555922">I'm trying to install jEdit on Linux, but I keep getting strange error messages.
- </a></dt><dt>Q: <a href="problems.html#id2555961">After installing jEdit on Linux, running the
- jedit command causes the error
- message: Warning: JAVA_HOME environment variable not set
- How can I fix this?</a></dt></dl></dd><dt>4. <a href="problems.html#windows-problems">Windows Problems</a></dt><dd><dl><dt>Q: <a href="problems.html#id2556019">When I try to run jedit.exe I get
- the message The JEditLauncher component does not appear to be installed.</a></dt><dt>Q: <a href="problems.html#id2556073">When I try to run the jEdit installation package in
- Windows, I get an error message, Error opening registration key
- "software\javasoft\java runtime environment". How can I fix
- this?</a></dt><dt>Q: <a href="problems.html#id2556121">When trying to install jEdit on Windows Me with an
- MS-DOS prompt, after entering java -jar
- jeditXXXinstall.jar I get the message
- bad command or file name. I have
- tried various alternatives but still cannot install.</a></dt><dt>Q: <a href="problems.html#id2556189">When I run jEdit on Windows, it flashes, blinks, and
- doesn't display correctly! Why is your program so
- buggy?</a></dt></dl></dd></dl><table border="0" summary="Q and A Set"><col align="left" width="1%"><tbody><tr class="qandadiv"><td align="left" valign="top" colspan="2"><h4 class="title"><a name="general-problems"></a>1. General Problems</h4></td></tr><tr class="toc"><td align="left" valign="top" colspan="2"><dl><dt>Q: <a href="problems.html#id2554067">jEdit won't start. What should I do?</a></dt><dt>Q: <a href="problems.html#id2555342">After jEdit starts, I can't see all of the plugins I
- have downloaded. How can I make them appear?</a></dt><dt>Q: <a href="problems.html#id2555409">During an editing session I get an error message about
- an “OutOfMemoryError” while working with a
- large file or performing a lengthy operation. The message
- reappears every time I retry the operation. How can I
- prevent this?</a></dt><dt>Q: <a href="problems.html#id2555518">My textarea gets confused about the end of the buffer or in some other way corrupted (the characters are in the wrong place on the screen) every now and then. What
- should I do?</a></dt><dt>Q: <a href="problems.html#id2555556">Why is jEdit's window movement and resizing so
- buggy?</a></dt><dt>Q: <a href="problems.html#id2555596">What should I do when the installer displays the
- message, No such file or directory?</a></dt><dt>Q: <a href="problems.html#id2555646">After downloading
- jeditXXXinstall.jar (the
- XXX represents the version number), I
- tried to run java
- jeditXXXinstall.jar, but got the error message,
- Exception in main(), NoClassDefFoundError: jeditXXXinstall/jar.
- What am I doing wrong?</a></dt><dt>Q: <a href="problems.html#id2555708">jEdit crashed the JVM, what gives?</a></dt><dt>Q: <a href="problems.html#id2555737">Why is jEdit so slow to start up?</a></dt><dt>Q: <a href="problems.html#id2555802">Why is jEdit so slow?</a></dt><dt>Q: <a href="problems.html#id2555834">Go to left/top/bottom/right docking area does not work
- for some plugins?</a></dt></dl></td></tr><tr class="question"><td align="left" valign="top"><a name="id2554067"></a><a name="wont-start"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>jEdit won't start. What should I do?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>If you don't have a clue as to why you cannot run
- jEdit, it's best to perform a step-by-step diagnosis. If it
- never worked before, begin by finding the Java application
- loader you are using: <code class="filename">java.exe</code>,
- <code class="filename">javaw.exe</code> or <code class="filename">java</code>.
- Make sure it is running by entering its full path with the
- <strong class="userinput"><code>-h</code></strong> parameter in a terminal or console
- window. If you can't find the Java application loader, your
- Java runtime environment package may be missing or
- incomplete.</p><p>Next, find where you have installed jEdit. You should
- look for the file <code class="filename">jedit.jar</code> which
- contains all of the application's Java class files in a
- compressed archive.</p><p>Once you have both files, run the Java loader with the
- <strong class="userinput"><code>-jar</code></strong> option and with
- <code class="filename">jedit.jar</code> as the target. Make sure that
- you either specify full paths for both files or that the
- directories for the files are part of your
- <code class="filename">PATH</code> environment variable. If jEdit
- does not load at this point, the likely problem is a corrupt
- <code class="filename">jedit.jar</code> file. Try downloading the
- application again.</p><p>If jEdit does load using this procedure, you need to
- examine the “<span class="quote">shortcut</span>” loading mechanism you
- wish to use.</p><p>On Linux and MacOS X, you need to find and examine the
- <code class="filename">jedit</code> shell script provided by the
- installation routine to confirm that the script's commands
- target the correct files and locations, and that variables
- like <code class="filename">JAVA_HOME</code> are either defined in
- the script or elsewhere in your shell's environment. Don't
- forget to make sure that the script's file permissions allow
- you to execute it as a shell script.</p><p>On Windows, if you are using a batch script to run
- jEdit, the same points (other than file permissions) apply
- to examining <code class="filename">jedit.bat</code>. If you are
- using jEditLauncher, run <strong class="userinput"><code>jedit /p</code></strong> in
- jEdit's installation directory from a command line to get
- the custom loader's setup dialog. Here you can check the
- paths for both the Java application loader and jEdit as well
- as any command line parameters for both programs. Make sure
- that you have placed Java and jEdit options in the correct
- input fields. If the parameters seems correct but jEdit will
- not load with the Windows launcher, try uninstalling and
- reinstalling the launcher by running <strong class="userinput"><code>jedit
- /u</code></strong> followed by <strong class="userinput"><code>jedit
- /i</code></strong>.</p><h3><a name="id2555296"></a>But it worked before! It just stopped working
- after an upgrade. What should I do?</h3><p>If it used to work for an older version and no longer
- works, it could be that you have some old crud in your jEdit
- settings directory (<code class="literal">$HOME/.jedit</code>). You
- may want to try renaming the offending file/subdirectory to
- something else, and restarting jEdit with fresh settings.
- You can later copy the old settings back into the previous
- location if you find you are missing things. Many files in
- your settings directory directory are (or should be)
- human-readable/editable, so you are encouraged to examine
- them and see what is there. You can wipe out
- <code class="literal">.jedit/jars-cache</code> while jEdit is not
- actually running, and it will be rebuilt next time you start
- it.</p><p>If at this point you're still stuck, ask for help on
- the jedit-users mailing list, the jEdit Community
- “<span class="quote">Installation</span>” message board or on IRC. You're
- bound to find someone quickly.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555342"></a><a name="start-missing-plugins"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>After jEdit starts, I can't see all of the plugins I
- have downloaded. How can I make them appear?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>If you use jEdit's Plugin Manager to download and
- install plugins, your plugins will be found in the
- <code class="filename">jars</code> subdirectory of one of two
- directories: either the directory in which jEdit is
- installed, or the current user's settings directory. These
- are the only location jEdit examines when it loads plugins
- at startup.</p><p>The default location of the settings directory depends
- on your operating system. You can find out its location
- during a jEdit session by evaluating
- <strong class="userinput"><code>jedit.getSettingsDirectory()</code></strong> in
- BeanShell.</p><p>The settings directory can be changed by using the
- <strong class="userinput"><code>-settings</code></strong> command line parameter. If
- you change the location of the settings directory with this
- parameter, jEdit will not be able to find plugin archive
- files in the old location. If you use or change the
- <strong class="userinput"><code>-settings</code></strong> parameter, make sure your
- plugins don't get left behind.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555409"></a><a name="problems-out-of-memory"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>During an editing session I get an error message about
- an “<span class="quote">OutOfMemoryError</span>” while working with a
- large file or performing a lengthy operation. The message
- reappears every time I retry the operation. How can I
- prevent this?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>One solution that often works is to set or increase
- the allocation of memory to the heap for Java objects
- created by the Java Virtual Machine in which jEdit is
- running. Add the command line option
- <strong class="userinput"><code>-mxXXm</code></strong> to the options passed to the
- version of the Java application loader you are using (such
- as <code class="filename">java</code>, <code class="filename">java.exe</code>
- or <code class="filename">javaw.exe</code>). In place of the
- <strong class="userinput"><code>XX</code></strong> in the option, use a multiple of
- 16 between 32 and 256. If you already are using the option,
- increase the numeric portion of the
- <strong class="userinput"><code>-mxXXm</code></strong> parameter in increments of
- 64.</p><p>If you are using the <strong class="userinput"><code>-jar</code></strong>
- command line option with Java to run jEdit, remember that
- the <strong class="userinput"><code>-jar</code></strong> parameter must be the last
- Java option, followed immediately by the path to
- <code class="filename">jedit.jar</code> and then any jEdit command
- line options.</p><p>If out of memory errors occur while running a build or
- compilation operation from within jEdit, you can also have
- the operation run in an external process rather than inside
- the same Java Virtual Machine running jEdit. The AntFarm
- plugin, for example, lets you select this approach as a
- configuration option. In other cases, you can run an
- external program using the command line interface of the
- Console plugin, which will capture and display the output of
- the external process and in many cases parse the output for
- error information.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555518"></a><a name="textarea-corruption"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>My textarea gets confused about the end of the buffer or in some other way corrupted (the characters are in the wrong place on the screen) every now and then. What
- should I do?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>It happens to me sometimes too. I have this macro to work around it for now:
- </p><pre class="programlisting">
- /** Reset_TextArea.bsh */
- view.splitVertically();
- view.unsplitCurrent();
- </pre><p>
- Run this, and jEdit creates
- a new TextArea for you, and that one won't be confused. This
- can help avoid the need to restart jEdit. If you can
- reproduce the steps you took to cause this, please submit a bug report
- that details what plugins/versions you were using, and how to reproduce it. Especially take note of what linewrap mode - and fyi, we have received no reports of this from people who use hard/no line wrap. </p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555556"></a><a name="general-borders"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>Why is jEdit's window movement and resizing so
- buggy?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>Perhaps the option to let Java draw window borders is
- enabled. This option can lead to strange behavior on some
- Java versions and operating systems. Disable it in the
- <span class="guilabel"><strong>Appearance</strong></span> tab of the
- <span class="guimenu"><strong>Utilities</strong></span>><span class="guimenuitem"><strong>Global
- Options</strong></span> dialog box.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555596"></a><a name="install-no-such-file"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>What should I do when the installer displays the
- message, </p><pre class="screen">No such file or directory</pre><p>?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>The full message that you may receive from the Java
- application launcher begins as follows: </p><pre class="screen">Exception in thread "main" java.util.zip.ZipException: No such file or directory
- ...</pre><p> This means that the Java application launcher cannot read the jar
- archive file that you specified on the command line. If your
- Java runtime environment otherwise runs properly, then
- either you have named the incorrect file name or the
- installation file is corrupt or incomplete. Check the file
- name, download the installer again if necessary, and be sure
- to follow any specific instructions for your operating
- system posted on the <a class="ulink" href="http://www.jedit.org" target="_top">jEdit
- web site</a>.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555646"></a><a name="install-noclassdef"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>After downloading
- <code class="filename">jeditXXXinstall.jar</code> (the
- <code class="filename">XXX</code> represents the version number), I
- tried to run <strong class="userinput"><code>java
- jeditXXXinstall.jar</code></strong>, but got the error message,
- </p><pre class="screen">Exception in main(), NoClassDefFoundError: jeditXXXinstall/jar.</pre><p>
- What am I doing wrong?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>You need to specify the <strong class="userinput"><code>-jar</code></strong>
- option for the Java application loader so that the loader
- will search the installation archive for the starting class
- file. Without the option, it treats the archive as a single
- class file (which it is not!), thus producing the error. The
- correct command line would be <strong class="userinput"><code>java -jar
- jeditXXXinstall.jar</code></strong>.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555708"></a><a name="jedit-crashed"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>jEdit crashed the JVM, what gives?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>It's important to realise that java applications
- should never do this. The problem is almost certainly a bug
- in the JVM. Problems of this nature are often tricky to
- solve. Depending on your platform, there should be
- information logged about what caused the crash to occur. For
- Unix type systems you will likely get an error in the
- console (and for Mac OS X you may also get a report in
- ~/Library/Logs/CrashReporter/JavaApplicationStub.crash.log).
- </p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555737"></a><a name="general-slowstart"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>Why is jEdit so slow to start up?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>Some plugins require a lot of setup - chances are if
- you disable one, you will be able to determine the culprit.
- jEdit normally starts up quite quickly without
- plugins.</p><div class="procedure"><ol type="1"><li><p>To go the <span class="guimenu"><strong>Utilities</strong></span> menu and
- select <span class="guimenuitem"><strong>Activity
- Log</strong></span>.</p></li><li><p>Scroll to the area where you see lines like
- “<span class="quote">[notice] JARClassLoader: Starting plugin
- XXX</span>”.</p></li></ol></div><p>You should be able to see which (if any) plugins are
- causing an excesively long delay.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555802"></a><a name="general-slow"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>Why is jEdit so slow?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>There may be many causes for this. Java by nature is
- more demanding on hardware than native applications. Modern
- computers should not have much problem with this.</p><p>The most likely cause is plugins that parse buffers or
- do other computationally expensive operations. These include
- XML, JavaSideKick, and CodeAid. If performance is important
- to you, installing a whole batch of plugins in one go is
- probably not a very good idea. Install them one at a time,
- so you can evaluate the effects of each. </p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555834"></a><a name="general-docking"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>Go to left/top/bottom/right docking area does not work
- for some plugins?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>The plugin is missing a
- <code class="methodname">requestDefaultFocus()</code> method.
- Plugin updates will be available from time to time, or you
- can email the author of the plugin to let them know of the
- problem.</p></td></tr><tr class="qandadiv"><td align="left" valign="top" colspan="2"><h4 class="title"><a name="macos-problems"></a>2. Mac OS Problems</h4></td></tr><tr class="toc"><td align="left" valign="top" colspan="2"><dl><dt>Q: <a href="problems.html#id2555874">Why are the tabs for docked windows blurry under OS X
- 10.2?</a></dt></dl></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555874"></a><a name="blurry-tabs"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>Why are the tabs for docked windows blurry under OS X
- 10.2?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>In Mac OS X 10.2 Apple enabled Hardware Acceleration
- for Java by default. Unfortunately it had some bugs. This is
- the result of one of these bugs. The only way to avoid this
- problem is to disable hardware acceleration for jEdit or
- your whole system. To disable it in jEdit you will need to
- edit the following file:
- jEdit/jEdit.app/Contents/Resources/MRJApp.properties You
- will need to add the line
- <strong class="userinput"><code>com.apple.hwaccel=false</code></strong>. This is done
- for you in the Mac OS X plugin.</p></td></tr><tr class="qandadiv"><td align="left" valign="top" colspan="2"><h4 class="title"><a name="unix-problems"></a>3. Unix/Linux Problems</h4></td></tr><tr class="toc"><td align="left" valign="top" colspan="2"><dl><dt>Q: <a href="problems.html#id2555922">I'm trying to install jEdit on Linux, but I keep getting strange error messages.
- </a></dt><dt>Q: <a href="problems.html#id2555961">After installing jEdit on Linux, running the
- jedit command causes the error
- message: Warning: JAVA_HOME environment variable not set
- How can I fix this?</a></dt></dl></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555922"></a><a name="using-older-jre"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>I'm trying to install jEdit on Linux, but I keep getting strange error messages.
- </p><pre class="programlisting">
- Exception in thread "main" java.lang.UnsupportedClassVersionError:
- installer/Install (Unsupported major.minor version 49.0)
- Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
- </pre></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p> Make sure the version of Java you are running is 1.5 or higher. Default installations of Linux still include a gij compiler which is only 1.4 compliant.
- the do not normally include a java5 jre or even jdk, so you often must install it manually. In debian/ubuntu,
- <code class="literal"> apt-get install sun-java5-jdk </code>
- </p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2555961"></a><a name="install-jedit-home"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>After installing jEdit on Linux, running the
- <strong class="userinput"><code>jedit</code></strong> command causes the error
- message: </p><pre class="screen">Warning: JAVA_HOME environment variable not set</pre><p>
- How can I fix this?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>Your <code class="filename">jedit</code> shell script should be
- modified to set the <strong class="userinput"><code>JAVA_HOME</code></strong>
- variable to the directory containing the executables of your
- desired Java runtime environment (JRE).</p></td></tr><tr class="qandadiv"><td align="left" valign="top" colspan="2"><h4 class="title"><a name="windows-problems"></a>4. Windows Problems</h4></td></tr><tr class="toc"><td align="left" valign="top" colspan="2"><dl><dt>Q: <a href="problems.html#id2556019">When I try to run jedit.exe I get
- the message The JEditLauncher component does not appear to be installed.</a></dt><dt>Q: <a href="problems.html#id2556073">When I try to run the jEdit installation package in
- Windows, I get an error message, Error opening registration key
- "software\javasoft\java runtime environment". How can I fix
- this?</a></dt><dt>Q: <a href="problems.html#id2556121">When trying to install jEdit on Windows Me with an
- MS-DOS prompt, after entering java -jar
- jeditXXXinstall.jar I get the message
- bad command or file name. I have
- tried various alternatives but still cannot install.</a></dt><dt>Q: <a href="problems.html#id2556189">When I run jEdit on Windows, it flashes, blinks, and
- doesn't display correctly! Why is your program so
- buggy?</a></dt></dl></td></tr><tr class="question"><td align="left" valign="top"><a name="id2556019"></a><a name="install-windows-errmessage"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>When I try to run <code class="filename">jedit.exe</code> I get
- the message </p><pre class="screen">The JEditLauncher component does not appear to be installed.</pre></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>The dialog presenting this message asks if you would
- like to install the launcher. Select
- <strong class="userinput"><code>Yes</code></strong> and supply further information as
- prompted. A file named <code class="filename">install.log</code> is
- generated in the same directory as
- <code class="filename">jedit.exe</code> that contains information on
- the launcher's installation. You can send this file along
- with jEdit's Activity Log if you continue to have problems
- running jEdit with the launcher package.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2556073"></a><a name="install-error-regkey"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>When I try to run the jEdit installation package in
- Windows, I get an error message, </p><pre class="screen">Error opening registration key
- "software\javasoft\java runtime environment".</pre><p> How can I fix
- this?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>The problem is not with jEdit but may be caused by
- your installation of the Java runtime environment. Under
- Windows, Sun's Java application loader relies on entries in
- the Windows registry to find the files that create the
- runtime environment and a Java virtual machine. The loader
- (<code class="filename">java.exe</code>e or
- <code class="filename">javaw.exe</code>) is unable to find the
- necessary registration entry and therefore sends the error
- message. The best approach to fixing this is to uninstall
- and reinstall the JDK.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2556121"></a><a name="install-windows-badcommand"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>When trying to install jEdit on Windows Me with an
- MS-DOS prompt, after entering <strong class="userinput"><code>java -jar
- jeditXXXinstall.jar</code></strong> I get the message
- <strong class="userinput"><code>bad command or file name</code></strong>. I have
- tried various alternatives but still cannot install.</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>You should confirm that you have a Java runtime
- environment installed, which will include
- <code class="filename">java.exe</code> and the version that omits a
- separate terminal window, <code class="filename">javaw.exe</code>.
- Make sure that the directory containing
- <code class="filename">java.exe</code> or
- <code class="filename">javaw.exe</code>is found in the value of your
- <code class="filename">PATH</code> environment variable. Otherwise
- you should give the full path to the chosen loader on your
- command line.</p></td></tr><tr class="question"><td align="left" valign="top"><a name="id2556189"></a><a name="general-windows-ddraw"></a><p><b>Q:</b></p></td><td align="left" valign="top"><p>When I run jEdit on Windows, it flashes, blinks, and
- doesn't display correctly! Why is your program so
- buggy?</p></td></tr><tr class="answer"><td align="left" valign="top"><p><b>A:</b></p></td><td align="left" valign="top"><p>A frequent cause of this problem is buggy video
- drivers and/or a buggy DirectDraw implementation. A
- workaround is to disable Java's use of DirectDraw by adding
- the following option to the Java virtual machine command
- line:</p><pre class="programlisting">-Dsun.java2d.noddraw=true</pre></td></tr></tbody></table></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="plugins.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="appendix.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Plugin Questions </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> A. Contributors</td></tr></table></div></body></html>