Common Problems "unspecified launch failure" https://stackoverflow.com/questions/36903282/why-does-my-cuda-kernel-crash-unspecified-launch-failure-with-a-different-data "CUDALINK : nvlink error : Undefined reference to '' in 'Debug/.obj'" Every function in a class must be defined for the class to be used on the device. https://stackoverflow.com/questions/37507274/getting-error-nvlink-error-undefined-reference-to-zn8strategy8backtestepdd