Same here, glad it's not just me!
My game is perfect as it is, all the essentials and not a single crash in a week of play. Would really like to backup my current version before the next update. Please help!
Error while creating game backup: System.IO.FileNotFoundException: Could not find file 'C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\GameBackups.rph'.
File name: 'C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\GameBackups.rph'
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access)
at =KeCqQeOxGrp0CXjfdeyqEEJiE9=.=R25hRreaIAyNxH9ywRPin8UxxA=(String )
at =eH1jiv68ucGXGRIaAGraiq8y7N=.=eB0BitDiYwDRtMlzyMiEAqL4BK=(Action`1 )
at =lp1R1828KIlWx2LSgF0grXmqho=.=gYf3vmH02ZTsYrgxT902rLFpb=()
I have had problems with file permissions with GTA V in the past (where I as an admin cannot delete GTA V files without admin permissions, even plugins I installed myself...). I see some "FileAccess" words in that error, so maybe that's involved somehow?