Questions about "Error running integrated external tool builder" of Csound Project

there is a error alert of "Error running integrated external builder" when I am trying the Csound project of Victor Lazzarini from

http://ift.tt/15dTGv3

Here is the whole information about the error.

Errors occurred during the build.
Errors running builder 'Integrated External Tool Builder' on project 'audiotest'.
Variable references non-existent resource : ${http://workspace_loc:/com.audiotest.AudiotestActivity}
Variable references non-existent resource : ${http://workspace_loc:/com.audiotest.AudiotestActivity}

Besides, I have installed SWIG,PCRE successfully and using Mac os. Are there any suggestion to handle this?

Also, I am confused about the usage of SWIG and the code from the website,

 $sh build.sh

 export ANDROID_NDK_ROOT=$HOME/work/android-ndk-r7

 swig -java -package opensl_example -includeall -verbose
 -outdir src/opensl_example -c++ -I/usr/local/include
 -I/System/Library/Frameworks/JavaVM.framework/Headers
 -I./jni -o jni/java_interface_wrap.cpp opensl_example_interface.i

 $ANDROID_NDK_ROOT/ndk-build TARGET_PLATFORM=android-9 V=1

What is the difference between the terminal command I used to build the NDK?

  cd /<Path of project>/jni
  /<Path of NDK>/ndk-build

Thank you so much.