OAuth API 1.8 error

Hello, Elgg has been working out for us except for the OAuth API 1.8 Plug In. It cannot be activated. Have looked around for a solution but cannot find one to fix this. Can anyone help??? Thank you!

TypeNameExpected ValueActual valueComment
Requires Elgg version >= 1.8 1.8.12 ok
Conflicts Plugin: oauth_lib any -- ok
Conflicts PHP extension: oauth     error
Provides Plugin: oauth_api 1.8 --