aapt tool failed error while packaging apk

[goshdarn]

I am getting this error while packaging my apk which has this ANE

Aapt tool failed:C:\Users\USER\AppData\Local\Temp\132f4 366e-4ad5-a50e-3bbde8 2a36a1\app_entry_res\values\strings.xml:19: error: Resource at app_version appea rs in overlay but not in the base package; use to add. C:\Users\USER\AppData\Local\Temp\132f4617-366e-4ad5-a50e-3bbde82a36a1\app_entry_ res\values\strings.xml:20: error: Resource at button_install appears in overlay but not in the base package; use to add.

I am on Windows 7 using Air sdk 18.