Just over a week ago I checked out the source for a C++ project called 'Ardour' using Subversion. The Ardour project compiles and builds fine using g++ under a Linux distro called 64studio (which I gather is based on Debian Etch).

Today I tried to do a svn update but I get the error 'Unable to lock: libs/flowcanvas' (where libs/flowcanvas is one of the subfolders for this particular project). I get the same problem, regardless of whether I log in as myself or 'root'.

Can anyone suggest what might be wrong?