Android Gradle Dexexception : Library Dex Files Are Not Supported In Multi-dex Mode

My application reached the 64k limit recently. I tried to create multiple dexes using --multidex option by adding : exec java $javaOpts -jar '$jarpath' --multi-dex '$@' in dx bat

Solution 1:

The --multi-dex option to dx is incompatible with pre-dexing library projects. So if your app uses library projects, you need to disable pre-dexing before you can use --multi-dex.

That said, I have no idea why this occurred to you at runtime. This clearly is a build time failure exposed by the dx tool. Maybe what happened to you is that parts of the app were rebuild when running from the IDE, triggering the build error.