Multiple dex files define Lorg/apache/commons/io/IOUtils;
问题 I ran into a really silly issue. I can't assemble my project. I created single projects for e.g. database managment, for an api, custom layouts, etc. Now I am trying to combine all of these projects into one, to build a single application. But unfortunaley it does not work as excpected as I am getting this error: Execution failed for task ':app:transformDexArchiveWithDexMergerForDebug'. com.android.build.api.transform.TransformException: com.android.dex.DexException: Multiple dex files define