UnboundLocalError on Local Variable

[alexhasenclever]

Dear Developers,

User Story

I recently tried to run the SimGen/metadrive_simgen.py script to test the SimGen environment, but I found myself with a new issue.

Issue

When running the metadrive_simgen.py script, the following Traceback appears on the terminal:

Traceback (most recent call last):
File "/home/.../SimGen/metadrive_simgen.py", line 287, in
output = pipeline(
^^^^^^^^^
File "/home/.../SimGen/simgen/simgen.py", line 227, in call
images = self._process(
^^^^^^^^^^^^^^
File "/home/.../SimGen/simgen/simgen.py", line 139, in _process
H, W, C = resize_image(HWC3(anchor_image), image_resolution_h).shape
^^^^^^^^^^^^
UnboundLocalError: cannot access local variable 'anchor_image' where it is not associated with a value

How to reproduce the issue

1. Install the last version of SimGen as detailed in the README file.
2. Run "SimGen/metadrive_simgen.py"

Hardware

CPU: AMD Ryzen 9 7950X
GPU: Nivida GeForce RTX 4090
RAM: 32GB

Additional Information

Before running the metadrive_simgen.py script I tried the test/test.py script, and it worked as expected.
I tried to run the script a few times, with the "use_render" flag set to True and False. The log message I mentioned above, appears when running with the script "use_render = False". When rendering is enabled, Metadrive manages to open a rendering window, but Vs Code crashes completely before showing any output.

I thank you in advance and wish you a nice week.

Regards,
A. Hasenclever

[pengzhenghao]

Hi @alexhasenclever thanks for reaching out! Do you still get this error? I can run metadrive_simgen.py normally with latest code.