My profile builds work great with my local gamelift server. I can create an active session. All good. But my release build crashes on “gamelift_start_server”. The release build works perfectly fine on LAN but upon starting the gamelift session it crashes. This does not happen on my profile builds.
When I attach a debugger to the release build and trigger the crash, it complains of “Source information is missing from the debug information for this module.” The crash seems to be happening in ntdll. The server pdb files are correctly being loaded. Likely a dll issue.
My project has the multiplayer and gamelift gems enabled.
Remember an EC2 windows instance instance (in this case Windows Server 2012 I believe) is pretty bare bones. If you require DLLs you should install them as part of your install.bat script
Most likely you aren’t installing the Windows Visual Studio Redistribution, so:
Check your server logs for hint at why things are crashing on launch
And/or manually launch the process to ensure it starts, or check the error message for what DLLs are missing
Pro tip:
Open the RDP port on the fleet during fleet-creation when testing on GameLift (can turn off once your builds are stable). Otherwise you have to wait until the fleet is ACTIVE or in ERROR to adjust the fleet ports which can a while.