Flex SDK missing fundamental things

Question

All of a sudden Flash Builder 4 is missing all kinds of fundamental things and is generating incorrect errors. I've had the same issue yesterday, where I fixed it by downloading a new Flex SDK and importing that into FB. I did this again, but this time it fixed nothing.

I don't think it's something I did, like removing critical references from the build path. The errors also appeared on projects I was not working on at the time. It occurs for ActionScript, Flex and Flex Library projects alike.

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Update 3: Well, i've singled the problem down to a single piece of code, though a very simple one. I can make a new workspace in FB and things work ok, then screw the workspace up forever by adding this code to a project. All projects will have errors and closing or even removing the faulty project does not change this. Making another new workspace (without the faulty code) makes my projects compile again.

Link: http://www.the3rdage.net/files/2745/Main.as (i've uploaded the file in case an odd character or encoding error causes the error)

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Update 2: I've tried manual compiling with mxmlc, the same errors occur. It appears to be an SDK problem, not Flash Builder.

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Update: I find this stack trace in the Flash Builder error log:

!ENTRY com.adobe.flexbuilder.project 4 43 2010-05-11 11:55:47.495
!MESSAGE Uncaught exception in compiler
!STACK 0
java.lang.NullPointerException
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2592)
    at macromedia.asc.parser.VariableBindingNode.evaluate(VariableBindingNode.java:64)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2233)
    at macromedia.asc.parser.ListNode.evaluate(ListNode.java:44)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2578)
    at macromedia.asc.parser.VariableDefinitionNode.evaluate(VariableDefinitionNode.java:48)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2310)
    at macromedia.asc.parser.StatementListNode.evaluate(StatementListNode.java:60)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2503)
    at macromedia.asc.parser.WithStatementNode.evaluate(WithStatementNode.java:44)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2310)
    at macromedia.asc.parser.StatementListNode.evaluate(StatementListNode.java:60)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2891)
    at macromedia.asc.parser.FunctionCommonNode.evaluate(FunctionCommonNode.java:106)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:2905)
    at macromedia.asc.parser.FunctionCommonNode.evaluate(FunctionCommonNode.java:106)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:3643)
    at macromedia.asc.parser.ClassDefinitionNode.evaluate(ClassDefinitionNode.java:106)
    at macromedia.asc.semantics.ConstantEvaluator.evaluate(ConstantEvaluator.java:3371)
    at macromedia.asc.parser.ProgramNode.evaluate(ProgramNode.java:80)
    at flex2.compiler.as3.As3Compiler.analyze4(As3Compiler.java:709)
    at flex2.compiler.CompilerAPI.analyze(CompilerAPI.java:3089)
    at flex2.compiler.CompilerAPI.analyze(CompilerAPI.java:2977)
    at flex2.compiler.CompilerAPI.batch2(CompilerAPI.java:528)
    at flex2.compiler.CompilerAPI.batch(CompilerAPI.java:1274)
    at flex2.compiler.CompilerAPI.compile(CompilerAPI.java:1496)
    at flex2.tools.oem.Application.compile(Application.java:1188)
    at flex2.tools.oem.Application.recompile(Application.java:1133)
    at flex2.tools.oem.Application.compile(Application.java:819)
    at flex2.tools.flexbuilder.BuilderApplication.compile(BuilderApplication.java:344)
    at com.adobe.flexbuilder.multisdk.compiler.internal.ASApplicationBuilder$MyBuilder.mybuild(ASApplicationBuilder.java:276)
    at com.adobe.flexbuilder.multisdk.compiler.internal.ASApplicationBuilder.build(ASApplicationBuilder.java:127)
    at com.adobe.flexbuilder.multisdk.compiler.internal.ASBuilder.build(ASBuilder.java:190)
    at com.adobe.flexbuilder.multisdk.compiler.internal.ASItemBuilder.build(ASItemBuilder.java:74)
    at com.adobe.flexbuilder.project.compiler.internal.FlexProjectBuilder.buildItem(FlexProjectBuilder.java:480)
    at com.adobe.flexbuilder.project.compiler.internal.FlexProjectBuilder.build(FlexProjectBuilder.java:306)
    at com.adobe.flexbuilder.project.compiler.internal.FlexIncrementalBuilder.build(FlexIncrementalBuilder.java:157)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:627)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:170)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:253)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:256)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:309)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:341)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:238)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Answer 1

Did you get a chance to list this issue in their bugs list. I have not yet tried Flex 4. did you try to refresh your project and re open your flash builder.

Update:

What about a simple project. I think you are trying to load something which its not able to get.

mxmlc - verify-digests

Try this.

Answer 2

Problems I've had that were somewhat similar, once I had FB running under the wrong version of Java. Another time I had done some edits to the flex-config.xml file in order to make it work with a Maven plugin we had written in house. After that we made the plugin look at a copy of the original xml file, so that problem went away. hth.