Invalid Package declaration: abc.groovy is not in a source folder matching the package declaration

There were some emails that I exchanged with someone using Grails with Eclipse and they were focused around not being able to create compile a class without a package declaration. I am able to do this.

I think to get to the root of the problem, I will create a sample Grails application and try to bring it into Eclipse so I have a common frame of reference for understanding the errors.

I just did the grails install of version 0.2 and started following the instructions of the quick start to create a grails app. I imported the project into my eclipse ( version 3.2 ) workspace and it was not seamless. I first had to set the GRAILS_HOME variable in eclipse and then had to tell it not to use grails-0.2-SNAPSHOT.jar and instead use grails-0.2.jar. I also had to add a JAVA_HOME variable and reedit the class path entry to point at %JAVA_HOME%/lib/tools.jar. After I did this I am not getting the same problems with the building of groovy scripts....

In fact I noticed that the groovy scripts are being copied into bin instead of the .class files. Is this a recent fix or something?

I don't recall having a problem with the .groovy files being copied into the bin directory. In the past, those have always been excluded. It happens the groovy nature gets added to a project. The Java builder gets configured to exclude *.groovy files.

The problem is in GroovyProject.java , the test for if( path.toOSString().equals( packageLocation ) ) fails when the project is imported from an external file location. The IPath is point to the logical location relative to the workspace and the packageLocation is referring to physical location of the file outside the workspace.

Zoinks!! Scott unless you have a solution on hand I will investigate fixing this.

I don't have a quick solution at hand - thanks.

Try out this patch. I changed the code that acquires the source directories from the classpath to goto the project, get the IResource object that corresponds, check that that IResource object exists, and then query it for its raw location.

I was able to reproduce the problem and this seems to have made it go away.

James - thanks for the quick turn around. I also was able to duplicate the error and watch it go away.
Thomas - I committed the patch to CVS. You pull down the latest plugin from CVS and try it out, thanks.