Java Question Library: Jarsigner error: duplicate AndroidManifest.xml

I figured I would just post this message that I sent to Erel and give the source to the project since it is an open source project to begin with. Anyway...

I have a library I am trying to create off of another app. This app is an engine that plays adventure games. The app has a library and then an android app that acts as a front end. I am trying to create a B4A library that can access the engine so that I can include the engine prebuilt into the app, instead of having the user re-download the app seperately.

My project files for eclipse is here: http://adventurestockpile.com/workspace.zip

It includes everything you need. I already wrote a class and such for the Library, but I am having some issues after exporting the library. Just to explain this further:

The Project in the workspace that is called "AGS Engine Library" contains the compiled Engine and the Android Interface thats wrapped around it as its running. "AGS Game Launcher" is the launcher front end for the engine. I probably do not need that. However, there is a function called "Startgame" in there that I mimic in my class. The Class folder project that I am using to write my B4A library is called "AGSRunTime4". You will see that I have a "startgame" function in there.

Basically, in B4A, I wanted to include the library, declare it somewhat like this:
Dim EngineRT as RunAGS
And then to start the engine, I would just fill in these parameters so it reads something like:
EngineRT.StartGame("SpaceQuest", False)

On the face of it, in B4A, it works. However, when I try to compile the project, I get this error:

Signing package file (private key) Error

jarsigner: unable to sign jar: java.util.zip.ZipException: duplicate entry: AndroidManifest.xml

Any Idea's? Anything else wrong with my class?

I guess that there are unneeded files in your jar file. The one that causes the problem is AndroidManifest.xml. You can open the jar file with a program such as 7zip and examine its contents.

OK. That worked. I didn't know that I could do that and didn't want to destroy the Library. But now I have a different issue with the library if anyone wants to take a look. I was running the app and in Activity_Create, I put this code there just to test the library:

Dim GG as RunAGS
GG.StartGame("SpaceQuestMinus1", False)

The App crashed and I received this log:

LogCat connected to: B4A-Bridge: asus Nexus 7-
--------- beginning of /dev/log/main
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Service (service1) Create **
** Service (service1) Start **
Connected to B4A-Bridge (Wifi)
Installing file.
** Activity (main) Pause, UserClosed = false **
PackageAdded: package:b4a.example
** Activity (main) Create, isFirst = true **
main_activity_create (B4A line: 31)
Dim gg As RunAGS
java.lang.NoClassDefFoundError: com.AGSRunTime4.Engine.RunAGS
at b4a.example.main._activity_create(main.java:239)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
at b4a.example.main.afterFirstLayout(main.java:89)
at b4a.example.main.access$100(main.java:16)
at b4a.example.main$WaitForLayout.run(main.java:74)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **

Click to expand...

What am I doing wrong here? Again, if you would like, please feel free to look at the source code. Thanks.

Wild guess but as the xml seems OK as it got through the compiler try setting in Eclipse

Window -> Preferences -> Java -> Compiler -> Compliance level -> 1.6