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Question Re: Help with Tutorial Example 

Forum: Documentation and Examples
Re: Question Help with Tutorial Example
Date: 12 Jun, 2002
From: Tony Johnson <Tony Johnson>

HI, it seems from your traceback that the problem occurs the first time you attempt to open a window on the screen. This is not a problem I have seen before, so you may need to do some additional tests to help to diagnose the problem.

First can you check that your X-server is running properly and that your DISPLAY environment variable is set properly. The easiest way is to issue a command such as:

xclock

and verify that a clock appears on your screen.

If that works the next thing to test is whether java itself is installed and working. You could try this:

export JDK_HOME=/usr/java/jdk1.3.1_02 # modify to the path where you installed Java export PATH=$JDK_HOME/bin:$PATH java -jar $JDK_HOME/demo/jfc/SwingSet2/SwingSet2.jar

A demo Java GUI should appear on the screen. (You may get bunch of messages regarding missing points, but you can ignore them).

Please let me know if these tests do/do not work, or if you discover any problems in running them. If they do work and you still have problems running the Geant4 demo I will suggest more tests to try.

Also can you tell me which of the two pre-built versions of Geant4 on the CD you used (egcs or gcc), and which compiler you have installed (gcc -v).

Tony

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