Upgrade to svn 1.7 on cygwin causes W155007 not a working copy?

Summary:
It seems that the new top-level .svn directory spontaneously disappears
sometimes?
Which leaves me with a useless working copy...

Details:
I updated my Cygwin installation recently, which (unexpectedly) gave me an
upgrade to svn 1.7.
This is on a Windows 7 64-bit Dell Latitude E6520.
$ svn --version
svn, version 1.7.0 (r1176462)
   compiled Oct 11 2011, 10:36:16

Since svn 1.7 was incompatible with my existing working copy, I did 'svn
upgrade' in my top-level directory, which contains several projects from
different SVN repositories. It removed all the .svn directories in most of
those subdirectories (all the ones that belonged to my main SVN repository),
but then failed to create a top-level .svn directory!

This made my working copy useless. But I thought maybe this 'bug' happened
because there were working copies from multiple repositories within that
directory (which is a convenient way to work, with Eclipse). So I decided
to do something simpler to see if I could work around this bug.

So I did a fresh svn checkout into a new directory, which worked fine.
(Except that Eclipse could not read the new-style working copy, and gave
several warnings about this, so I eventually upgraded its subclipse plugin
as well, to version 1.8.0 using the "JavaHL (JNI) 1.7.0 (r1176462)" client).

After working normally for that day, the next day I got the same error:

    svn: warning: W155007: '/cygdrive/c/marku/qut/networkmodel' is not a
working copy

Once again, the top-level .svn folder had completely disappeared! Leaving
my working copy useless.
Note that that 'networkmodel' directory was a fresh checkout with svn 1.7,
so contains only projects from one repository (which is a svn 1.6 repository
I think).

I did a full system disk scan for disk errors, no problems reported.

Has anyone else had problems like this since upgrading to svn 1.7?

Is it possible that the Eclipse plugin is deleting the top-level .svn
directory?

Thanks
Mark
Received on 2011-10-19 05:10:54 CEST