Have you tried replacing the module with a fresh copy?

?

I am completely stumped on a compile error I am getting after updating to the latest version.? When I have run into similar problems in the past doing a full recompile after deleting the spiswork directory has resolved the issue but this time no luck.? The module I am struggling with is the official denon heos modules, and to add to the mystery if I create a brand new program and add the modules I dont get any compile errors.

Here are the two errors I am struggling with.? Any help is greatly appreciated

ERROR? (LGCMCVT149)? Code\SPlsWork\DenonHEOS_Device_Engine_v7_1_0.cs, Line 91
??????? Code\SPlsWork\DenonHEOS_Device_Engine_v7_1_0.cs] Internal Error (Line 91) - The type 'Crestron.CRPC.MediaPlayer.IMediaPlayer' is defined in an assembly that is not referenced. You must add a reference to assembly 'MediaPlayer, Version=1.0.0.26508, Culture=neutral, PublicKeyToken=null'.
ERROR? (LGCMCVT258) ?
??????? SIMPL+: C# - Compiled with errors for \Code\SPlsWork\DenonHEOS_Device_Engine_v7_1_0.dll