Problem when activating ECB CVS

Hi all,

I'm using ECB CVS in conjunction with emacs CVS and cedet CVS.

Since cedet is now included in emacs and ECB works with cedet CVS, I
simply moved the 

DATA_DIR/emacs/23.1.50/lisp/cedet -> DATA_DIR/emacs/23.1.50/lisp/cedet-emacs

so ECB will use cedet CVS which is in the load path.

Then I got these message:

All requirements for ECB 2.40 fulfilled - Enjoy it!
The ECB is now deactivated.
ecb-clean-up-after-activation-failure: ECB 2.40: Errors during the layout setup of ECB. (error-type: wrong-number-of-arguments, error-data: (identity 2))

what's the problem? How should I debug it.

Regards.

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