Anybody did compile Farseer Physics Engine 3.0 with XNA 4 ?
Read the release page:
This release does not support XNA 4.0. XNA 4.0 introduced some breaking changes that means you will have to change some files in order for the release to compile. The current version (FPE 3.1) in the source control does support XNA 4.0.
You can download the latest source from http://farseerphysics.codeplex.com/SourceControl/list/changesets - although it may not be as nicely packaged as the release. It also may not be as stable.
Of course - I imagine that you probably can use Farseer 3.0 on XNA 4.0, because as far as I know there are no breaking changes in the maths-related classes between XNA 3.1 and XNA 4.0. You just won't be able to compile the demos (unless you fiddle with them).