Hi , I have quite similar problem like there: https://github.com/opencv/opencv/issues/9904?fbclid=IwAR0joRRpS3WTAJjKhmOYYl-t5UFHMGbWxD71NfUXULCbeDmy91GD9qasm48 I have an error with "OpenCV(3.4.5) Error: Requested object was not found (Layer with requested id=-1 not found) in cv::dnn::experimental_dnn_34_v11::LayerData& cv::dnn::experimental_dnn_34_v11::Net::Impl::getLayerData(int), file /build/3_4_pack-android/opencv/modules/dnn/src/dnn.cpp, " I"m doing my project on Android Studio for Android with this tutorial https://www.youtube.com/watch?v=JasVghcUeyg&list=PLZBN9cDu0MSl6Ei6OzhVfRtSWaxkt0LA1&index=6. I think that can be problem with deprecated function to load file Environment.getExternalStorageDirectory. Any other ideas? I hope somebody answer me fast :)