I am starting to develop an Opencv application on Android. I have two errors when compiling an OpenCV sample (15 puzzles) on Android:1. error: cannot find the GL_TEXTURE_EXTERNAL_OES symbol variable2. error: the android.hardward.camera2 package does not exist .
Change the version of the SDK to compile and create tools to the last , but on the opencv module in the project structure.
SDK Build (21 ) 25
app/
https://i.stack.imgur.com/1z1O5.jpg
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