XX_MembersInjector.class is repeatedly generated in the wrong package

demo’s url : https://github.com/kj387948407/DaggerBugTest

dagger2 generates Middle_MembersInjector.class should be in this package com.uama.happinesscommunity.base at the module base, but in the demo, The file is repeatedly generated in module mine and module user, respectively, and build the project, throws exception: `Error:Execution failed for task ‘:app:transformClassesWithDexForDebug’.

com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexException: Multiple dex files define Lcom/uama/happinesscommunity/base/Middle_MembersInjector;`

and mine another project throws exception `Error:Execution failed for task ‘:app:transformClassesWithJarMergingForXflcDevelop’.

com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/uama/happinesscommunity/base/Middle_MembersInjector.class`

Middle_MembersInjector.class exactly the same, and in the same directory, resulting in an error. Do not know whether this understanding is correct.

[HassanIbraheem]

Just faced this issue as well. Found #814 which seems to be the same.

The generated MembersInjector is in the right package, but is generated in multiple modules.

If I understood it correctly, this happens when your Middle class doesn’t need any injections, so dagger doesn’t generate a MembersInjector for it in base module. When dagger processes the other modules, and doesn’t find that MembersInjector, it generates one, in each module.

The duplicate generated MembersInjector are actually not used at all, and you’ll only get the error when you assemble the top-level module (app).

A workaround that seems to work, is adding an unneeded @Inject field to Middle class. This will make dagger generate the MembersInjector in the base module, and it won’t be generated in other modules any more.

[KingJ0629]

@hsnim You understand quite right, I met this problem a half month ago, it is the same way as you temporarily solve for a moment.