From 600f339c4cf1829c4a52bf83a71544ba7fe7bb5b Mon Sep 17 00:00:00 2001
From: w-e-w <40751091+w-e-w@users.noreply.github.com>
Date: Tue, 9 Apr 2024 20:59:04 +0900
Subject: [PATCH 1/2] Warning when Script is not found

---
 modules/scripts.py | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/modules/scripts.py b/modules/scripts.py
index 264503ca3c4..70ccfbe46b1 100644
--- a/modules/scripts.py
+++ b/modules/scripts.py
@@ -739,12 +739,17 @@ def init_field(title):
         def onload_script_visibility(params):
             title = params.get('Script', None)
             if title:
-                title_index = self.titles.index(title)
-                visibility = title_index == self.script_load_ctr
-                self.script_load_ctr = (self.script_load_ctr + 1) % len(self.titles)
-                return gr.update(visible=visibility)
-            else:
-                return gr.update(visible=False)
+                try:
+                    title_index = self.titles.index(title)
+                    visibility = title_index == self.script_load_ctr
+                    self.script_load_ctr = (self.script_load_ctr + 1) % len(self.titles)
+                    return gr.update(visible=visibility)
+                except ValueError:
+                    params['Script'] = None
+                    massage = f'Cannot find Script: "{title}"'
+                    print(massage)
+                    gr.Warning(massage)
+            return gr.update(visible=False)
 
         self.infotext_fields.append((dropdown, lambda x: gr.update(value=x.get('Script', 'None'))))
         self.infotext_fields.extend([(script.group, onload_script_visibility) for script in self.selectable_scripts])

From ef83f6831fd747fea4d0fa638fe5ffb71aaa5b0f Mon Sep 17 00:00:00 2001
From: w-e-w <40751091+w-e-w@users.noreply.github.com>
Date: Tue, 9 Apr 2024 21:28:44 +0900
Subject: [PATCH 2/2] catch exception for all paste_fields callable

---
 modules/infotext_utils.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/infotext_utils.py b/modules/infotext_utils.py
index 1c91d076df6..f1e8f54ba5e 100644
--- a/modules/infotext_utils.py
+++ b/modules/infotext_utils.py
@@ -8,7 +8,7 @@
 
 import gradio as gr
 from modules.paths import data_path
-from modules import shared, ui_tempdir, script_callbacks, processing, infotext_versions, images, prompt_parser
+from modules import shared, ui_tempdir, script_callbacks, processing, infotext_versions, images, prompt_parser, errors
 from PIL import Image
 
 sys.modules['modules.generation_parameters_copypaste'] = sys.modules[__name__]  # alias for old name
@@ -488,7 +488,11 @@ def paste_func(prompt):
 
         for output, key in paste_fields:
             if callable(key):
-                v = key(params)
+                try:
+                    v = key(params)
+                except Exception:
+                    errors.report(f"Error executing {key}", exc_info=True)
+                    v = None
             else:
                 v = params.get(key, None)