Your APP_BUILD_SCRIPT points to an unknown file using Android ndk-build

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.

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)

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.