From 4bb136927f60798cc00fd392dc0a8b0621aa4445 Mon Sep 17 00:00:00 2001
From: Sadie Bartholomew <sadie.bartholomew@metoffice.gov.uk>
Date: Tue, 17 Apr 2018 12:43:02 +0100
Subject: [PATCH] Fix exception handling for view attempts on removed tasks

---
 lib/cylc/gui/app_gcylc.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/cylc/gui/app_gcylc.py b/lib/cylc/gui/app_gcylc.py
index 7688dd267df..ac2bc6166ec 100644
--- a/lib/cylc/gui/app_gcylc.py
+++ b/lib/cylc/gui/app_gcylc.py
@@ -1628,8 +1628,11 @@ def popup_requisites(self, w, e, task_id, *args):
         try:
             results, bad_items = self.updater.client.get_info(
                 'get_task_requisites', items=[task_id])
+        except AttributeError:
+            pass
         except ClientError as exc:
             warning_dialog(str(exc), self.window).warn()
+            return
         if not results or task_id in bad_items:
             warning_dialog(
                 "Task proxy " + task_id +