Unable to instantiate activity

[anandpurushottam]

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{it.polimi.poccodeloading/com.labinapp.demo.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.labinapp.demo.MainActivity" on path: DexPathList[[zip file "/data/app/it.polimi.poccodeloading-1/base.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_dependencies_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_0_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_1_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_2_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_3_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_4_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_5_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_6_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_7_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_8_apk.apk", zip file "/data/app/it.polimi.poccodeloading-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]

I was trying to open a apk by dexclassloader but i am getting error. I am not sure what exactly is the problem can you help me regarding this error. And is it possible to access resource files of other apk by using this library.