Sumanth - I had this error yesterday and found this helpful.

Go to Project » Properties » Java Build Path » Libraries and remove
all except the "Android X.Y" (in my case Android 2.2). click OK. Go to
Project » Clean » Clean projects selected below » select your project
and click OK. That should work.

On Dec 1, 10:59 pm, sumanth <ag.suma...@gmail.com> wrote:
> Hi all,
>
> I'm new to android and currently stuck with this error when I try to
> create a simple android project.
>
> I apologize if this is a repost, but the solutions in other
> discussions in this group and the net was not helping me.
>
> I get this when i create a new project and try to compile:
>
> UNEXPECTED TOP-LEVEL EXCEPTION:
> java.util.zip.ZipException: error in opening zip file
>         at java.util.zip.ZipFile.open(Native Method)
>         at java.util.zip.ZipFile.<init>(ZipFile.java:115)
>         at java.util.zip.ZipFile.<init>(ZipFile.java:132)
>         at
> com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.jav a:
> 205)
>         at
> com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:
> 130)
>         at
> com.android.dx.cf.direct.ClassPathOpener.processDirectory(ClassPathOpener.j 
> ava:
> 190)
>         at
> com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:
> 122)
>         at
> com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:
> 108)
>         at com.android.dx.command.dexer.Main.processOne(Main.java:247)
>         at com.android.dx.command.dexer.Main.processAllFiles(Main.java:183)
>         at com.android.dx.command.dexer.Main.run(Main.java:139)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 48)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp 
> l.java:
> 25)
>         at java.lang.reflect.Method.invoke(Method.java:600)
>         at com.android.ide.eclipse.adt.internal.sdk.DexWrapper.run(Unknown
> Source)
>         at
> com.android.ide.eclipse.adt.internal.build.PostCompilerHelper.executeDx(Unk 
> nown
> Source)
>         at
> com.android.ide.eclipse.adt.internal.build.PostCompilerBuilder.build(Unknow n
> Source)
>         at org.eclipse.core.internal.events.BuildManager
> $2.run(BuildManager.java:633)
>         at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
>         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:37)
>         at
> org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:
> 256)
>         at
> org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.j 
> ava:
> 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)
> [2010-12-02 11:55:24 - helloandroid] 1 error; aborting
> [2010-12-02 11:55:24 - helloandroid] Conversion to Dalvik format
> failed with error 1
>
> I'm not sure which zip file android is having trouble opening.
>
> Thanks!
> Sumanth

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