1 files changed, 2 insertions, 0 deletions

diff --git a/scripts/builder/repository.py b/scripts/builder/repository.py
index 89db9a5..f3f7d6f 100644
--- a/scripts/builder/repository.py
+++ b/scripts/builder/repository.py
@@ -5,12 +5,14 @@
 def repositoryWithPath (path):
         try:
                 from dulwich.repo import Repo
 
                 repo = Repo(path)
                 result = GitRepository(repo, path)
+        except ImportError:
+                print "Failed to import dulwich, please install http://www.samba.org/~jelmer/dulwich/"
         except:
                 from mercurial import ui, hg
 
                 repo = hg.repository(ui.ui(), path)
                 result = HgRepository(repo, path)