Though the source code seems to have TypeName defined, it does not seem to be available after mono is compiled. I've even downloaded the source code and recompiled to make sure it wasn't something with the binary I downloaded for Ubuntu.
Reproduced. The property is not available but can be called via Reflection:
So looks like the Reference assemblies for this Profile doesn't have it defined.
As a workaround update your .net target version to framework to 4.6