The volrend.exe file is under build/Release after build, so there will be error if you run ./volrend directly when your current path is just build. When your current command path is under build, the correct way is cd Release first and then run ./volrend, or you can just run ./Release/volrend instead.
Besides, if you have the .npz files, you can just put it under Release file, and run ./volrend name.npz.
The volrend.exe file is under build/Release after build, so there will be error if you run ./volrend directly when your current path is just build. When your current command path is under build, the correct way is cd Release first and then run ./volrend, or you can just run ./Release/volrend instead. Besides, if you have the .npz files, you can just put it under Release file, and run ./volrend name.npz.
