hi
when I want mining verge(xvg), ccminer show this error: GPU#0:Intensity set to 21, 2097152 cuda threads
Cuda error in func 'skein256_cpu_init' at line 462 : invalid device symbol

 my  setting for xvg:  -a lyra2v2 -o stratum+tcp://lyra2v2.mine.zpool.ca:4533 -u wallet -p c=XVG-lyra -i 21

is my gtx970 too old for mining xvg?
any solution!??