Errors made by the Flex builder in the project

Question

It drives me crazy. When creating a project, I get the following error:

Errors occurred during the build. Errors running builder 'Flex' on project 'my-services'. java.lang.NullPointerException 

Here is the last error from the error log in Eclipse

 !ENTRY org.eclipse.core.resources 4 75 2011-09-07 16:07:04.391 !MESSAGE Errors occurred during the build. !SUBENTRY 1 com.adobe.flexbuilder.project 4 75 2011-09-07 16:07:04.391 !MESSAGE Errors running builder 'Flex' on project 'my-services'. !STACK 0 java.lang.NullPointerException at com.adobe.flexbuilder.project.compiler.internal.FlexProjectBuilder.calcBuildTotalWork(FlexProjectBuilder.java:148) at com.adobe.flexbuilder.project.compiler.internal.FlexProjectBuilder.build(FlexProjectBuilder.java:160) at com.adobe.flexbuilder.project.compiler.internal.FlexIncrementalBuilder.build(FlexIncrementalBuilder.java:157) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:629) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:172) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:203) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:255) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:258) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:311) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:343) at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144) at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:242) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) 

I tried to clean up the project, update the project, restart eclipse, even remove it from my workspace and re-import it. I am still lost.

Answer 1

In my case, I work with modules, and I created a special output folder for all modules. I got this in the log:

 !ENTRY org.eclipse.core.resources 4 75 2012-03-04 10:27:12.328 !MESSAGE Errors occurred during the build. !SUBENTRY 1 com.adobe.flexbuilder.project 4 75 2012-03-04 10:27:12.328 !MESSAGE Errors running builder 'Flex' on project 'myProject'. !STACK 0 java.lang.RuntimeException: Object reference not set to an instance of an object. 

I was able to resolve this by editing the .project file, which looked like it was causing an error:

 ... <linkedResources> <link> <name>[source path] modules</name> <type>2</type> <locationURI>DOCUMENTS/modules</locationURI> </link> <link> <name>bin-debug</name> <type>2</type> <locationURI>DOCUMENTS/modules</locationURI> </link> </linkedResources> ... 

I was able to resolve this by editing the .project file, which looked like it was causing an error:

 ... <linkedResources> <link> <name>bin-debug</name> <type>2</type> <locationURI>DOCUMENTS/modules</locationURI> </link> </linkedResources> ... 

Hope this helps someone else solve this annoying mistake.

Answer 2

In my case, the reason for this was that the folder in which the project was located did not contain the .actionScriptProperties file in it.

In case you cannot find this file anywhere, this is how my views

 <?xml version="1.0" encoding="UTF-8"?> <actionScriptProperties mainApplicationPath="YOUR_MAIN_SCREEN.mxml" version="3"> <compiler additionalCompilerArguments="-locale en_US -use-network=false" copyDependentFiles="true" enableModuleDebug="false" generateAccessible="false" htmlExpressInstall="true" htmlGenerate="true" htmlHistoryManagement="true" htmlPlayerVersion="9.0.0" htmlPlayerVersionCheck="true" outputFolderPath="bin" strict="true" useApolloConfig="false" verifyDigests="true" warn="true"> <compilerSourcePath/> <libraryPath defaultLinkType="1"> <libraryPathEntry kind="4" path=""> <modifiedEntries> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/framework.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="true"/> </modifiedEntries> <excludedEntries> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation_agent.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/qtp.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation_dmv.swc" useDefaultLinkType="false"/> </excludedEntries> </libraryPathEntry> <libraryPathEntry kind="1" linkType="1" path="bin"/> <libraryPathEntry kind="1" linkType="1" path="${PROJECT_FRAMEWORKS}"/> <libraryPathEntry kind="1" linkType="1" path="bin/libs"/> <libraryPathEntry kind="1" linkType="1" path="libs"/> <libraryPathEntry kind="1" linkType="1" path="Components/ComponentsTesoreria"/> </libraryPath> <sourceAttachmentPath> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/datavisualization.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="false"/> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/flex.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="false"/> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/framework.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="true"/> </sourceAttachmentPath> </compiler> <applications> <application path="YOUR_MAIN_SCREEN.mxml"/> <application path="ANOTHER_SCREEN.mxml"/> </applications> <modules/> <buildCSSFiles/> <?xml version="1.0" encoding="UTF-8"?> <actionScriptProperties mainApplicationPath="YOUR_MAIN_SCREEN.mxml" version="3"> <compiler additionalCompilerArguments="-locale en_US -use-network=false" copyDependentFiles="true" enableModuleDebug="false" generateAccessible="false" htmlExpressInstall="true" htmlGenerate="true" htmlHistoryManagement="true" htmlPlayerVersion="9.0.0" htmlPlayerVersionCheck="true" outputFolderPath="bin" strict="true" useApolloConfig="false" verifyDigests="true" warn="true"> <compilerSourcePath/> <libraryPath defaultLinkType="1"> <libraryPathEntry kind="4" path=""> <modifiedEntries> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/framework.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="true"/> </modifiedEntries> <excludedEntries> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation_agent.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/qtp.swc" useDefaultLinkType="false"/> <libraryPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/automation_dmv.swc" useDefaultLinkType="false"/> </excludedEntries> </libraryPathEntry> <libraryPathEntry kind="1" linkType="1" path="bin"/> <libraryPathEntry kind="1" linkType="1" path="${PROJECT_FRAMEWORKS}"/> <libraryPathEntry kind="1" linkType="1" path="bin/libs"/> <libraryPathEntry kind="1" linkType="1" path="libs"/> <libraryPathEntry kind="1" linkType="1" path="Components/ComponentsTesoreria"/> </libraryPath> <sourceAttachmentPath> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/datavisualization.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="false"/> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/flex.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="false"/> <sourceAttachmentPathEntry kind="3" linkType="1" path="${PROJECT_FRAMEWORKS}/libs/framework.swc" sourcepath="${PROJECT_FRAMEWORKS}/source" useDefaultLinkType="true"/> </sourceAttachmentPath> </compiler> <applications> <application path="YOUR_MAIN_SCREEN.mxml"/> <application path="ANOTHER_SCREEN.mxml"/> </applications> <modules/> <buildCSSFiles/> </actionScriptProperties> 

If you have a REPOSITORY associated with this project, this may explain why this is happening http://www.blackcj.com/blog/2009/02/22/error-loading-project-missing-project-files/