text size applied from dimen crash

[MxitarHakobyan]

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.NumberFormatException: For input string: "@2131165578"
at java.lang.Integer.parseInt(Integer.java:615)
at java.lang.Integer.(Integer.java:902)
at com.nihaskalam.progressbuttonlibrary.CircularProgressButton.initAttributes(CircularProgressButton.java:248)
at com.nihaskalam.progressbuttonlibrary.CircularProgressButton.init(CircularProgressButton.java:134)
at com.nihaskalam.progressbuttonlibrary.CircularProgressButton.(CircularProgressButton.java:123)
at java.lang.reflect.Constructor.newInstance0(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:343)