JavaScript error in method ZaController.prototype._setView

[teamfighter]

I have just installed zextras migration tool 2.0.4 at my zimbra server 8.6.0_GA_1153.FOSS.
When I try to open link Zextras -> ZxMig, I am facing with error JavaScript error in method ZaController.prototype._setView
Can you please help me?
I have already restarted zimbra server and cleared cache.

[Cine]

Hello teamfighter,
welcome to the forums!

Could you please access the Zimbra Administraton Console in Dev Mode (by adding "?dev=1" at the end of the URL) and check whether the issue appears again? If so, please send the full error displayed in your browser's Javascript Console to community@zextras.com (adding the URL of this thread in the subject).

Have a nice day,
Cine
the ZeXtras Team