--- a/hgext/convert/darcs.py	Wed Aug 27 12:30:28 2014 +0200
+++ b/hgext/convert/darcs.py	Tue Aug 26 22:03:32 2014 +0200
@@ -8,7 +8,7 @@
 from common import NoRepo, checktool, commandline, commit, converter_source
 from mercurial.i18n import _
 from mercurial import util
-import os, shutil, tempfile, re
+import os, shutil, tempfile, re, errno
 
 # The naming drift of ElementTree is fun!
 
@@ -192,8 +192,13 @@
         if rev != self.lastrev:
             raise util.Abort(_('internal calling inconsistency'))
         path = os.path.join(self.tmppath, name)
-        data = util.readfile(path)
-        mode = os.lstat(path).st_mode
+        try:
+            data = util.readfile(path)
+            mode = os.lstat(path).st_mode
+        except IOError, inst:
+            if inst.errno == errno.ENOENT:
+                return None, None
+            raise
         mode = (mode & 0111) and 'x' or ''
         return data, mode