--- a/hgext3rd/evolve/legacy.py	Thu Mar 09 10:42:50 2017 -0800
+++ b/hgext3rd/evolve/legacy.py	Thu Mar 09 13:11:20 2017 -0800
@@ -111,7 +111,7 @@
                             err += 1
                 finally:
                     f.close()
-                unlink.append(repo.join('obsolete-relations'))
+                unlink.append(repo.vfs.join('obsolete-relations'))
             except IOError:
                 pass
             ### second (json) format
@@ -149,7 +149,7 @@
                         msg %= (oldobject, oldsubjects)
                         repo.ui.write_err(msg)
                         err += 1
-                unlink.append(repo.sjoin('obsoletemarkers'))
+                unlink.append(repo.svfs.join('obsoletemarkers'))
             tr.close()
             for path in unlink:
                 util.unlink(path)