Android Question Error in use of SlidingMenuWrapper (In <declare-styleable> FontFamilyFont, unable to find attribute

If I use SlidingMenuWrapper library in my project. It gives me this error-
B4A Version: 8.00
Parsing code. (0.00s)
Compiling code. (0.33s)
Compiling layouts code. (0.02s)
Organizing libraries. (0.00s)
Generating R file. Error
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:font
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:fontStyle
ERROR: In <declare-styleable> FontFamilyFont, unable to find attribute android:fontWeight

I found number of post regarding this error but no one directing to solution.

I am new to B4A and will be thankful if you help to solve this issue.

Thanks