Attribute "progressColor" has already been defined.
The problem is this attr name is alredy defined by another library. My suggestion is to rename your attrs with a specific prefix, like fb or fab, or else you will have problems with other libraries that use your attrs name.
When building the project I get this:
Attribute "progressColor" has already been defined.
The problem is this attr name is alredy defined by another library. My suggestion is to rename your attrs with a specific prefix, like fb or fab, or else you will have problems with other libraries that use your attrs name.