Keystore issue, compiling for x86

Hi to everyone.

In Cocos2d-x (cocos2d-x-3.15) on Windows 7 when i compile with:

cocos compile -p android -m release --android-studio --app-abi x86

i receive an:
FAILURE: Build failed with an exception.

and the exception is:
Failed to read key My_app from store “E:\folder\folder\folder\folder\folder\folder\mykey.jks”: Cannot recover key

What is the reason.
Thanks in advance.
-AL

Can someone help me?