I'm in the process of moving a fairly large Max/MSP project from 4 to 5 and when I open it up, there are a large number of
#X:no such object
errors listed in the Max window. Worse, the "inspector" and "show object" buttons are geyed out, so there's no way to find out what object is giving the error. Mysteriously, the patch seems to function OK.
Eventually, I traced the problem to a set of three objects:
message open -> pcontrol -> message filename
The work around is to replace the three objects by retyping them in Max 5. Then the errors go away. I don't know what this means, but I'm happy the errors are gone!