"Brian K. Holdsworth" wrote:
I have seen a number of threads that talk about products becoming broken in a Zope installation with no apparent cause. I had a similar experience the other day. I moved my Data.fs file, which included several third-party and custom made ZClass Products, from one server to another. After moving the file, many of the ZClass Products were broken on the new server.
In order to fix this, I ended up also moving the complete contents of my lib/python/Products directory tree from the old server to the new one. This fixed everything.
This would be a Bad Thing(tm). Moving only the products you installed is the better move. Zope does put in it's own products in that directory. Things _may_ be broken do to a mismatched set of source files, since you have part of one version, and part of another. Just a guess. -- In flying I have learned that carelessness and overconfidence are usually far more dangerous than deliberately accepted risks. -- Wilbur Wright in a letter to his father, September 1900