This file is not part the project...

[Ateros4me]

For some reason, when I click on the native-lib.cpp file in the cpp directory within Android Studio the bar saying

This file is not part of the project. Please include it in the build file (build.gradle, CMakeList.txt...

However, I have this in the CMakeLists.txt file

add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp
src/main/cpp/DuplexEngine.cpp
)

So, why does it think it's not part of the project when it is added as a library element?

[Ateros4me]

You may as well close this as i’ve given up with OBOE as i just can’t get it to work

[philburk]

You also have to tell Gradle to look for a CMake file. Did you include this in the build.gradle file?

externalNativeBuild {
    cmake {
        path 'src/main/cpp/CMakeLists.txt'
    }
}

For example, from DrumThumper.

[Ateros4me]

Thanks Phil, after adding the above another problem has occurred within the CMakeList.txt file but i’ll submit that as a separate discussion.