helpful error message when trying to load 2.0 without config

failing to load model weights from settings won't break generation for currently loaded model anymore

1 files changed, 23 insertions, 2 deletions

diff --git a/modules/errors.py b/modules/errors.py
index 372dc51a..a668c014 100644
--- a/modules/errors.py
+++ b/modules/errors.py
@@ -2,9 +2,30 @@ import sys
 import traceback

 

 

+def print_error_explanation(message):

+    lines = message.strip().split("\n")

+    max_len = max([len(x) for x in lines])

+

+    print('=' * max_len, file=sys.stderr)

+    for line in lines:

+        print(line, file=sys.stderr)

+    print('=' * max_len, file=sys.stderr)

+

+

+def display(e: Exception, task):

+    print(f"{task or 'error'}: {type(e).__name__}", file=sys.stderr)

+    print(traceback.format_exc(), file=sys.stderr)

+

+    message = str(e)

+    if "copying a param with shape torch.Size([640, 1024]) from checkpoint, the shape in current model is torch.Size([640, 768])" in message:

+        print_error_explanation("""

+The most likely cause of this is you are trying to load Stable Diffusion 2.0 model without specifying its connfig file.

+See https://github.com/AUTOMATIC1111/stable-diffusion-webui/wiki/Features#stable-diffusion-20 for how to solve this.

+        """)

+

+

 def run(code, task):

     try:

         code()

     except Exception as e:

-        print(f"{task}: {type(e).__name__}", file=sys.stderr)

-        print(traceback.format_exc(), file=sys.stderr)

+        display(task, e)