From a1ae7fcbc8af9934d31acee1daa8564bcbc6edf6 Mon Sep 17 00:00:00 2001
From: Devin Slauenwhite <devin.slauenwhite@gmail.com>
Date: Thu, 24 Feb 2022 16:36:30 -0500
Subject: [PATCH 1/2] fix: show fail message

---
 erpnext/utilities/doctype/rename_tool/rename_tool.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/erpnext/utilities/doctype/rename_tool/rename_tool.js b/erpnext/utilities/doctype/rename_tool/rename_tool.js
index 5553e44ef8..5a2d249b42 100644
--- a/erpnext/utilities/doctype/rename_tool/rename_tool.js
+++ b/erpnext/utilities/doctype/rename_tool/rename_tool.js
@@ -30,7 +30,14 @@ frappe.ui.form.on("Rename Tool", {
 					select_doctype: frm.doc.select_doctype
 				},
 				callback: function(r) {
-					frm.get_field("rename_log").$wrapper.html(r.message.join("<br>"));
+					let html = r.message.join("<br>");
+
+					if (r.exc) {
+						r.exc = JSON.parse(r.exc);
+						html += "<br>" + r.exc.join("<br>");
+					}
+
+					frm.get_field("rename_log").$wrapper.html(html);
 				}
 			});
 		});

From 597bb2c7e827f16f6b63c6c0cd4e702b2b8509d2 Mon Sep 17 00:00:00 2001
From: Saqib Ansari <nextchamp.saqib@gmail.com>
Date: Wed, 16 Mar 2022 10:53:39 +0530
Subject: [PATCH 2/2] feat: safely parse exception

---
 erpnext/utilities/doctype/rename_tool/rename_tool.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/erpnext/utilities/doctype/rename_tool/rename_tool.js b/erpnext/utilities/doctype/rename_tool/rename_tool.js
index 5a2d249b42..b8203f4226 100644
--- a/erpnext/utilities/doctype/rename_tool/rename_tool.js
+++ b/erpnext/utilities/doctype/rename_tool/rename_tool.js
@@ -33,8 +33,10 @@ frappe.ui.form.on("Rename Tool", {
 					let html = r.message.join("<br>");
 
 					if (r.exc) {
-						r.exc = JSON.parse(r.exc);
-						html += "<br>" + r.exc.join("<br>");
+						r.exc = frappe.utils.parse_json(r.exc);
+						if (Array.isArray(r.exc)) {
+							html += "<br>" + r.exc.join("<br>");
+						}
 					}
 
 					frm.get_field("rename_log").$wrapper.html(html);