Didn't find class "MyApplication

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.dianjin.caicai.app.MyApplication" on path: DexPathList[[zip file "/data/app/com.dianjin.caicai-1/base.apk"],nativeLibraryDirectories=[/data/app/com.dianjin.caicai-1/lib/x86, /system/lib, /vendor/lib]]

打开android studio 的File → Settings → Build,Execution,Deployment → Instant Run将 Instant Run关掉，如：下图

clear project 清理一下项目，然后重新运行项目