I'm using modelbuilder with copy features => Define projection => Make feature layer...
I noticed that it's not possible to run it twice, because the second time "copy features" returns error 000464. I don't have results displayed in the mxd. The only way to unlock is to exit Arcmap and relaunch it.
It then seems that define projection locks file and do not release it even if the model had stopped running. By the way, I noticed that this sort of locks does not only happens in this case but didn't write down all the cases requiring to exit and relaunch to avoid locks messages after modelbuilder runs.
Any idea would be appreciated.
Olivier
Windows 7
ArcEditor 9.3.1
ERROR 000464: Cannot get exclusive schema lock. Either being edited or in use by another application.
Failed to execute (Copy Features).
