Error:Error: File path too long on Windows, keep below 240 characters :
C:\Users\Jason\Desktop\TEMP\emoji\Magicer-Android-master\AndroidViewPager\viewpagerdemo2\build\intermediates\exploded-aar\com.android.support\
appcompat-v7\23.4.0\res\drawable-hdpi-v4\abc_textfield_search_default_mtrl_alpha.9.png
出现这种情况的原因是 路径太深了。更改个路径就可以了