Android Question simple library compiler

[vvg]

I want to use simple library compiler for generating b4j library jar and xml from a third party java library.

I am getting following error...
Starting step: Compiling Java code.
javac 1.8.0_131
C:\Professional Project01\B4A Projects\simple libraray compiler with mate project\By Mate Technologies\SimpleBluetoothPrintingApp\FirstLibrary\src\DeviceListActivity.java:62: error: unmappable character for encoding UTF-8
setContentView(R.layout.device_list); //?????????
^
1 error
Error.

 

[Erel]

Can you post the original code in line 62? I guess that you need to remove the comment.