Server Wont Start In Debian

I followed all of your instructions and upon trying to start the server in Debian, it crashes saying:

Missing method .ctor in assembly bla/bla/CitizenMP.Server.exe, type system.Runtime.CompilerServices.ExtensionAttribute

Can’t find custom attr constructor image: bla/bla/CitizenMP.server.exe mtoken: 0x0a000001

Any help is appreciated, thanks in advance!