addrepo: Handle all pisi errors occurred when updating the new repo

BUG:FIXED:18309

pisi/cli/addrepo.py

@@ -70,7 +70,7 @@ NB: We support only local files (e.g., /a/b/c) and http:// URIs at the moment
             if not ctx.get_option('no_fetch'):
                 try:
                     pisi.api.update_repo(name)
-                except (pisi.fetcher.FetchError, IOError):
+                except (pisi.Error, IOError):
                     warning = _("%s repository could not be reached. Removing %s from system.") % (name, name)
                     self.warn_and_remove(warning, name)
         else: