Android Studio报错：Didn‘t find class “XXXActivity“ on path

在运行项目的时候报错：
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.bj.xw/com.bj.xw.MainActivity}: java.lang.ClassNotFoundException: Didn’t find class “com.bj.xw.MainActivity” on path: DexPathList[[zip file “/data/app/com.bj.xw-2/base.apk”],nativeLibraryDirectories=[/data/app/com.bj.xw-2/lib/arm64, /vendor/lib64, /system/lib64]]

Caused by: java.lang.ClassNotFoundException: Didn’t find class “com.bj.xw.MainActivity” on path: DexPathList[[zip file “/data/app/com.bj.xw-2/base.apk”],nativeLibraryDirectories=[/data/app/com.snxun.bj.xw-2/lib/arm64, /vendor/lib64, /system/lib64]]
Android Studio报错：Didn‘t find class “XXXActivity“ on path
解决办法：
打开AndroidManifest.xml你一定会发现有标红报错的地方，是因为注册Activity的路径写错了，修改一下就好。