Need a little help with srcds

So i have this line is srcds: C:\SRCDS\games3\orangebox\srcds.exe -console -game garrysmodbeta -port 27015 -tickrate 66 -maxplayers 8 +map gm_constuct but when i launch srcds4 (the name of my gmod 13 beta server) and it says Failed to load launcher.dll. What should i do?
~JK sorry this is the wrong forum i will move asap how do i delte this?

(User was banned for this post ("Wrong section" - Ninja101))