Error with nnue file while building stockfish 16 in android studio

[Jochengehtab]

Hi there,
i am currently trying to build stockfish in android stuido. I've got everything to work but always when i compile, i get this error:
C/C++: :6:9: error: Could not find incbin file 'nn-5af11540bbfe.nnue'
C/C++: .incbin "nn-5af11540bbfe.nnue"
C/C++: ^
C/C++: 1 error generated.

I have downloaded the nnue file but i doesn't still not work. I have tried other differnt things but nothing worked.

[moonchild94]

Were you able to solve the problem?

[fevpallar]

@moonchild94 @Jochengehtab

(tested on Android Q/10) what i do is to extract the stockfish-android-armv7.tar, inside the folder find "stockfish-android-armv7"
rename it to lib_stockfish.so, in android studio (non c++/ndk project) on each "jniLibs" and "libs" create dir. named "arm64-v8a". Put those.so files.

In android studio project , i have

   <application
        android:extractNativeLibs="true"..

and in build.grade put

implementation fileTree(dir: "libs", include: ["*.jar", "*.so"])

Done...

Now it's only java/kotlin code:

  fun tryIt() {
        val path = applicationContext.applicationInfo.nativeLibraryDir + "/lib_stockfish.so"
        val file = File(path)
        var process: Process? = null

        val outThread = Thread {
            try {

                process = Runtime.getRuntime().exec(file.path)
                println("arasan " + process.toString())
                val processOut: Process = (process as Process?)!!
                if (processOut == null) {
                    return@Thread
                }

                var command = "isready" //or other command
                command += "\n"
        command += "position startpos moves e2e4"
                command += "\n"
                command += "go infinite"
                command += "\n"


                processOut.outputStream.write(command.toByteArray())
                processOut.outputStream.flush()
                val out = BufferedReader(
                    InputStreamReader(
                        processOut!!.inputStream
                    )
                )
                var data: String?
                try {
                    while (out.readLine().also { data = it } != null) {

                        var xa = data
                        Log.d("stockfish", "$data")
                        //do something with data
                    }
                } catch (e: IOException) {
                }

            } catch (e: IOException) {
                e.printStackTrace()
            } finally {

            }
        }
        outThread.start()
}

My output on the console is

System.out              arasan Process[pid=23352, hasExited=false]
arasan                  Stockfish 16.1 by the Stockfish developers (see AUTHORS file)
arasan                  readyok
arasan                  info string NNUE evaluation using nn-b1a57edbea57.nnue
arasan                  info string NNUE evaluation using nn-baff1ede1f90.nnue
arasan                  info depth 1 seldepth 2 multipv 1 score cp -25 nodes 22 nps 11000 hashfull 0 tbhits 0 time 2 pv e7e5
arasan                  info depth 2 seldepth 2 multipv 1 score cp -19 nodes 51 nps 25500 hashfull 0 tbhits 0 time 2 pv d7d6
arasan                  info depth 3 seldepth 2 multipv 1 score cp -6 nodes 76 nps 38000 hashfull 0 tbhits 0 time 2 pv e7e5
arasan                  info depth 4 seldepth 3 multipv 1 score cp -6 nodes 102 nps 51000 hashfull 0 tbhits 0 time 2 pv e7e5 d2d3
arasan                  info depth 5 seldepth 7 multipv 1 score cp -8 nodes 378 nps 54000 hashfull 0 tbhits 0 time 7 pv g8f6
arasan                  info depth 6 seldepth 6 multipv 1 score cp -2 nodes 447 nps 55875 hashfull 0 tbhits 0 time 8 pv g8f6 d2d3 d7d5