Bug fixed.

source/tensor/XUtility.cpp

@@ -845,7 +845,7 @@ void ResetGPUDevices()
         cudaSetDevice(i);
         cudaSetDevice(i);
         cudaDeviceReset();
         cudaDeviceReset();
     }*/
     }*/
-#elif
+#else
     ShowNTErrors("TODO!");
     ShowNTErrors("TODO!");
 #endif
 #endif
 #endif
 #endif