Eclipse Community Forums: AMP » Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in class

Home » Archived » AMP » Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in class

Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in class [message #631296]

Wed, 06 October 2010 16:47

Eclipse User

When I try an execute any model I get the following:

Unexpected Exception for ede.brook.model.CoordinationGame
Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in class path.

java.lang.RuntimeException: Unexpected Exception for ede.brook.model.CoordinationGame
	at org.eclipse.amp.escape.ide.ProjectLoader.loadClass(ProjectLoader.java:114)
	at org.ascape.runtime.Runner.instanceFromName(Runner.java:919)
	at org.eclipse.amp.escape.ide.EclipseEscapeRunner.open(EclipseEscapeRunner.java:129)
	at org.eclipse.amp.escape.ide.EclipseEscapeRunner.open(EclipseEscapeRunner.java:96)
	at org.eclipse.amp.escape.ide.EclipseEscapeRunner.open(EclipseEscapeRunner.java:84)
	at org.eclipse.amp.escape.command.ExecuteJavaHandler.executeOpen(ExecuteJavaHandler.java:59)
	at org.eclipse.amp.escape.command.ExecuteHandler$1.run(ExecuteHandler.java:63)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: java.lang.NullPointerException
	at org.eclipse.amp.escape.ide.ProjectLoader.loadClass(ProjectLoader.java:109)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(Unknown Source)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.amp.escape.ide.ProjectLoader.loadClass(ProjectLoader.java:100)
	... 7 more

Things were working fine until I installed a few additional plugins (like Ascape swing) and downloaded the AMP sources. Unfortunately I can't remember the details so I'm not sure exactly at which put things stopped working. Interestingly the same project will work when I launch another Eclipse application run configuration from my development version of Eclipse.

Has this problem been seen before? Is this possible to diagnosis/debug further or am I best just to reinstall everything? Thanks!

Re: Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in c [message #631944 is a reply to message #631296]

Sun, 10 October 2010 18:30

Eclipse User

SOLVED!

I discovered that when I went to the org.ascape.escape.models.brook/META-INF/MANIFEST.MF Dependencies tab and right clicked on org.eclipse.amp.escape.runtime and clicked "Find Declaration" I got 0 matches.

I then checked and found there is no org.eclipse.amp.escape.runtime in the following locations:
* in the Plug-in registry view
* in Help - About Eclipse - Installation Details - Configuration
* in the plugin folder (D:\eclipse-modeling-helios-incubation-win32\plugins)

So I copied org.eclipse.amp.escape.runtime_0.8.0.v201007010013.jar to the eclipse plugins dir (D:\eclipse-modeling-helios-incubation-win32\plugins) and it started!

Re: Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in c [message #633288 is a reply to message #631944]

Fri, 15 October 2010 22:29

Eclipse User

Oliver Mannion wrote on Sun, 10 October 2010 18:30

So I copied org.eclipse.amp.escape.runtime_0.8.0.v201007010013.jar to the eclipse plugins dir (D:\eclipse-modeling-helios-incubation-win32\plugins) and it started!

Hmm..it should have worked without that...

Try creating a new Escape Java project and see if you see any differences between the two.

my question is why is it looking for "ede.brook.model.CoordinationGame" and not "edu.brook.model.CoordinationGame".

Re: Could not read class: ede.brook.model.CoordinationGame. Please ensure that the class exists in c [message #633432 is a reply to message #633288]

Sun, 17 October 2010 16:23

Eclipse User

This is a version of CoordinationGame that I created as per the "Create an Escape Java Model" cheat sheet which specifies a package name of ede.brook.model rather than edu.brook.model.

Previous Topic:	[SOLVED] Couldn't generate chart
Next Topic:	Conflicting dependency when installing Ascape Documentation and Source

Goto Forum:

-=] Back to Top [=-

Current Time: Mon Mar 24 06:24:45 EDT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter