I get the following error while trying to compile an Android NDK project:
ndk-build Android NDK: Your APP_BUILD_SCRIPT points to an unknown file: /home/lambergar/work/APIExample/jni/Android.mk /home/lambergar/android/ndk/android-ndk-r5c/build/core/add-application.mk:116: *** Android NDK: Aborting... . Stop. The weird thing is, that the 'unknown file' (Android.mk) exists under the path reported as invalid.
Same problem (in Windows 7) but the cause is different.
After searching in the Environment parameters, I've found the evil thing named "NDK_PROJECT_PATH" which has value is an invalid path.
Deleted it and things are working again ;)
I just had the same problem. I fixed it by creating a Application.mk in $NDK/apps/ndktestapp with following content:
APP_PROJECT_PATH := /cygdrive/c/workspace/MyApp and then calling
make APP=ndktestapp from the NDK-Root. Hope that helps.
In my case the problem was with white spaces in the project path. In such case, change the project path folders and import the project again.
I solved the problem by adding a new build to the project and voila, it works... Don't know what was the problem with the CLI build though.
You need to set the env variable NDK_PROJECT_PATH to the root of the project you are building. The root of your NDK project will typically contain the ./jni directory.
export NDK_PROJECT_PATH={root_of_project} If your JNI code is in a library, then set NDK_PROJECT_PATH to the library project.
Just saw this problem today. In my case actual problem was spaces inside path to project.
(yes, ndk-build will not compile your project if you have spaces inside folder name)
Just spent an hour or two trying to figure this one out. Many, many people have had this problem. But as I found out I actually did not have a file name Android.mk it was named Andriod.mk and that was enough to cause me a lot of trouble. Sorry about my original rant but that was the whole problem in the end. I suggest if you have this problem you should check everything until you find something wrong.
This fixed me right up. Thanks guys you put me on the right track anyway.
Phyll
as the same as @phavens, i think that only wrong with the word Android.mk and android.mk file, just spent for 5 minutes .. hehe
I just installed Android-NDK and tried "ndk-build". I had exactly the same error. Here is how I beat it.
bash export NDK_PROJECT_PATH={root_of_android_ndk}/samples/hello-jni ./ndk-build This worked.
Inside Android.mk file, you give the path where the jni folder loacted... in your case ARTOOLKIT_DIR :=/home/lambergar/work/APIExample/
Gradle Experimental plugein in Android Studio add support for Native project build.
in my case the project folder name had a space in it removed the space re imported it to Android Studio and that solved the problem