Project SharpDevelop 3.2 to 4.4

I have build a project with .NET Compact Framework 3.5 on SharpDevelop 3.2 and it work quite correctly. Now I would try to use SharpDevelop 4.4 but when I try to open the project I have this error:

Error loading c:\....\project.csproj:

The element <PlatformFamilyName> beneath element <Project> is unrecognized. C:\...\project.csproj

Another things; I can't find compact framework template project, Why? (In SD 3.2 I have it)