Cocos2D-x C++ Android Build Problems

Hello, I’m trying to build .apk file but so far no results as I’m getting errors and have no idea how to fix it. Maybe you guys could help me?
I’m using:
*Cocos2D-x3.10
*Apache-Ant-1.9.6
*Python 2.7.5
*java version “1.6.0_45”

This is the command I use:
python android-build.py -p 21 cpp-tests

This is the errors I’m getting (Android Terminal):

  [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: C:\Cocos\Cocos2d-x\cocos2d-x-3.10\cocos\platform\android\java\src\org\cocos2dx\lib\Cocos2dxDownloader.java uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 12 errors
    [javac] 100 warnings

BUILD FAILED
C:\Users\Home-PC\AppData\Local\Android\sdk\tools\ant\build.xml:601: The following error occurred while executing this line:
C:\Users\Home-PC\AppData\Local\Android\sdk\tools\ant\build.xml:720: The following error occurred while executing this line:
C:\Users\Home-PC\AppData\Local\Android\sdk\tools\ant\build.xml:734: Compile failed; see the compiler error output for details.

Total time: 2 seconds

Error line from build.xml file:

Line 601: antfile="build.xml">
Line 720: <do-only-if-manifest-hasCode elseText="hasCode = false. Skipping...">
Line 734: fork="${need.javac.fork}">

NDK version?
And I use cd proj.android-studio and cocos compile -p android --android-studio to build apk file.