Sorry to ask, but I simply can't get monogame to work... I've tried downloading the latest develop 3d resposorty and compiling it. But I get lots of errors like
 
Error CS0738: 'Microsoft.Xna.Framework.Content.Pipeline.ContentImporter<T>' does not implement interface member 'Microsoft.Xna.Framework.Content.Pipeline.IContentImporter.Import(string, Microsoft.Xna.Framework.Content.Pipeline.ContentImporterContext)'. 'Microsoft.Xna.Framework.Content.Pipeline.ContentImporter<T>.Import(string, Microsoft.Xna.Framework.Content.Pipeline.ContentImporterContext)' cannot implement 'Microsoft.Xna.Framework.Content.Pipeline.IContentImporter.Import(string, Microsoft.Xna.Framework.Content.Pipeline.ContentImporterContext)' because it does not have the matching return type of 'object'. (CS0738) (MonoGame.Framework.Content.Pipeline.Windows)
 
I seriously don't have an idea what I might be doing wrong, I followed the guide for compiling if somebody could help, I would be willing to make a video tutorial so people can use it...