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Editorial Team
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Asked: 2026-06-03T02:00:24+00:00

I have an Android application and a library project that I am using together.

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I have an Android application and a library project that I am using together. I am not having any issues using the components of the library project. I am however not able to launch any of the activities inside of my Application. I keep getting a ClassNotFound exception yet the fully qualified name matches exactly in the error message as it is in the source tree. All activities are defined correctly in the manifest. What would cause me to be able to launch any activity from the library project but not be able to launch an activity inside of the main application?

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1 Answer

  1. Editorial Team

    The problem ended up being when I tried to launch any Activities that extend MapActivity. I think the problem was that I had defined uses-library in both manifests for the Google maps api. I changed the build target of the library project to be just vanilla Android and removed the uses library call. My main project now targets the Google apis and has the uses library inside its manifest.

    I think it might have been screwing up the build path or something and could not find the MapActivity class or something. Not quite sure but those steps solved the problem.

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