Build Android Source Code failed

i want to build android and i follow the Developing,
just
$ source build/envsetup.sh
$ lunch
$ make -jN otapackage
and then…
including ./external/opencv/Android.mk …
including ./external/openfst/Android.mk …
including ./external/openssh/Android.mk …
including ./external/owasp/sanitizer/Android.mk …
including ./external/parameter-framework/Android.mk …
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
what should i do…

Hi, SMCXU:
You might need to post more build log to locate your issues.

Enjoy!