diff --git a/rhodecode/controllers/admin/repos.py b/rhodecode/controllers/admin/repos.py
--- a/rhodecode/controllers/admin/repos.py
+++ b/rhodecode/controllers/admin/repos.py
@@ -28,7 +28,7 @@ import traceback
 import formencode
 from formencode import htmlfill
 
-from paste.httpexceptions import HTTPInternalServerError
+from webob.exc import HTTPInternalServerError
 from pylons import request, session, tmpl_context as c, url
 from pylons.controllers.util import redirect
 from pylons.i18n.translation import _
diff --git a/rhodecode/controllers/compare.py b/rhodecode/controllers/compare.py
--- a/rhodecode/controllers/compare.py
+++ b/rhodecode/controllers/compare.py
@@ -51,8 +51,8 @@ class CompareController(BaseRepoControll
         or using a repo <empty>...(repo:</rhodecode/path/to/other)
 
 
-        :param ref:
-        :type ref:
+        :param ref: <orginal_reference>...<other_reference>
+        :type ref: str
         """
         org_repo = c.rhodecode_repo.name
 
diff --git a/rhodecode/controllers/home.py b/rhodecode/controllers/home.py
--- a/rhodecode/controllers/home.py
+++ b/rhodecode/controllers/home.py
@@ -26,7 +26,7 @@
 import logging
 
 from pylons import tmpl_context as c, request
-from paste.httpexceptions import HTTPBadRequest
+from webob.exc import HTTPBadRequest
 
 from rhodecode.lib.auth import LoginRequired
 from rhodecode.lib.base import BaseController, render
diff --git a/rhodecode/controllers/journal.py b/rhodecode/controllers/journal.py
--- a/rhodecode/controllers/journal.py
+++ b/rhodecode/controllers/journal.py
@@ -30,7 +30,7 @@ from sqlalchemy.orm import joinedload
 from webhelpers.paginate import Page
 from webhelpers.feedgenerator import Atom1Feed, Rss201rev2Feed
 
-from paste.httpexceptions import HTTPBadRequest
+from webob.exc import HTTPBadRequest
 from pylons import request, tmpl_context as c, response, url
 from pylons.i18n.translation import _