Forum OpenACS Q&A: Re: "channel already exists in target" with bgdelivery
I have got the same error in a busy server with many transfers.
Anyway to resolve it?
I tracked this problem down last November, and it turned out to be a bug in Tcl:
If you are using a recent version of Tcl 8.5 (e.g. 8.5.6 or 8.5.7), the problem is gone. If you are using tcl 8.4.*, you have to get tcl from the core-8-4-branch from sourceforge, or patch Tcl yourself and recompile