The most common cause. Hyperspin needs to know exactly where your HyperLaunch.exe or RocketLauncher.exe is located. If the path is wrong, Hyperspin tries to launch a file that doesn't exist, times out, and throws this error.
Older versions of HyperSpin look specifically for a file named HyperLaunch.exe . If you recently upgraded to RocketLauncher, your main executable is likely named RocketLauncher.exe . hyperspin cannot find launcher top