EDIT: Oops, entered this in the wrong project; moving to Tools instead.
The path contained in monodic-sdp doesn't match the actual path to the executable. /Library/Frameworks/Mono.framework/Versions/Current/lib/mono/4.0/Monobjc.Sdp.exe doesn't exist; it appears to now be Monobjc.Tools.Sdp.exe.
EDIT: Oops, entered this in the wrong project; moving to Tools instead.
The path contained in monodic-sdp doesn't match the actual path to the executable. /Library/Frameworks/Mono.framework/Versions/Current/lib/mono/4.0/Monobjc.Sdp.exe doesn't exist; it appears to now be Monobjc.Tools.Sdp.exe.
Monobjc-5.0.2090.0, Mac OSX 10.8