gmcs -target:library -out:AudioscrobblerPlugin.dll -r:Mono.Security.dll -r:System.Web.dll -pkg:gconf-sharp-2.0 -pkg:glade-sharp-2.0 -pkg:muine-plugin -resource:Audioscrobbler.glade EventQueue.cs Functor.cs Global.cs Song.cs GAudioscrobbler.cs AudioscrobblerPlugin.cs Package muine-plugin was not found in the pkg-config search path. Perhaps you should add the directory containing `muine-plugin.pc' to the PKG_CONFIG_PATH environment variable No package 'muine-plugin' found error CS8027: Error running pkg-config. Check the above output. make: *** [AudioscrobblerPlugin.dll] Error 1