Conflict AndroidSupport-Core Plus Androidx_core

[xangel82]

Hi,
I purchased Firebase and PermissioneCheck, I need to import AndroidSupport-Core.ane and androidx_core.ane library.

But when i go to build the application i receive this error message:

aapt tool failed:/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/android.support.compat-res/values/values.xml:7: error: Attribute "fontProviderFetchStrategy" already defined with incompatible format.
/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/core-res/values/values.xml:127: Original attribute defined here.
/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/android.support.compat-res/values/values.xml:12: error: Attribute "fontProviderFetchTimeout" already defined with incompatible format.
/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/core-res/values/values.xml:139: Original attribute defined here.
/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/android.support.compat-res/values/values.xml:16: error: Attribute "fontStyle" already defined with incompatible format.
/private/var/folders/kr/6v2lzgtj1_s8fvxx3w1jsz5h0000gn/T/c469f671-5a6b-4158-ade9-e0697d5fd100/core-res/values/values.xml:147: Original attribute defined here.

Please can you help me?

Thanks
M.