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Added trouble-shooting documentation
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---
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layout: default
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title: Scalatron Troubleshooting
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subtitle: Organizer Documentation
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---
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# About Scalatron
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Scalatron is an educational resource for groups of programmers that want to learn more about
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the Scala programming language or want to hone their Scala programming skills. It is based on
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Scalatron BotWar, a competitive multi-player programming game in which coders pit bot programs
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(written in Scala) against each other.
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The documentation, tutorial and source code are intended as a community resource and are
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in the public domain. Feel free to use, copy, and improve them!
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# Summary
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A lot of things can go wrong in life, and running Scalatron is one of them. Whatever happens,
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though, you're probably not the only one experiencing it and so there's hope that by collecting
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problematic experiences and solutions some of your pain can be alleviated. Here is a list of
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things known to go wrong with Scalatron, and sometimes how to fix them:
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## Problems Starting The Server
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**On Windows, double-clicking `/bin/Scalatron.jar` pops up an error dialog "Could not find the main class. Program will exit."**
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Probable Cause:
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* Very likely your Java Runtime Environment is too old.
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* Scalatron requires Version 1.6 or newer is required.
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Steps to Solve:
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* Go to [the Java download site](http://www.java.com/download/)
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* Download a more recent Java Runtime Environment
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* Install it and try again.
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**On Windows, running `java -jar /bin/Scalatron.jar` displays a "UnsupportedClassVersionError"**
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Probable Cause:
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* Very likely your Java Runtime Environment is too old.
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* Scalatron requires Version 1.6 or newer is required.
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Steps to Solve:
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* Go to [the Java download site](http://www.java.com/download/)
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* Download a more recent Java Runtime Environment
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* Install it and try again.
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## Problems Using The Browser Client
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The following browser/platform combinations should work:
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* Firefox 12.0 on Windows XP
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* Firefox 12.0 on MacOS 10.6.8
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* Safari 5.1.5 on MacOS 10.6.8
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The following browser/platform combinations are known not to work:
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* Internet Explorer 8 on Windows XP
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* Internet Explorer 7 on Windows XP
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* Firefox 2.0.0.11 on Windows XP

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