java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.lin.KnowManager/com.lin.KnowManager.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.lin.KnowManager.MainActivity" on path: DexPathList[[zip file "/data/app/com.lin.KnowManager-1/base.apk"],nativeLibraryDirectories=[/data/app/com.lin.KnowManager-1/lib/arm, /vendor/lib, /system/lib]]
奇怪的是我的MainActivity我没有动过,manifest里面的报名我也确认过是对的，这是我的文件

当我把DBHandle类删掉，就没有闪退了，很奇怪啊