Trouble exporting videos

[quantum-brutus]

hello again,

I had trouble exporting a video of a naviz code on my machine. Any help would be greatly appreciated.

Python: 3.12.10
mqt-core 3.2.1 pypi_0 pypi
mqt-naviz 0.2.0 pypi_0 pypi
mqt-qmap 3.3.1 pypi_0 pypi

You can use the code example from https://mqt.readthedocs.io/projects/qmap/en/latest/na_zoned_compiler.html to generate the naviz code, written thereafter as 'naviz'.

When running :

from naviz import Repository, export_video

arch = ZonedNeutralAtomArchitecture.from_json_file(arch_filename)
machine = arch.to_namachine_string()
style = Repository.machines().get("tum")

export_video(naviz, "out.mp4", (1920, 1080), 60, machine, style)

I get the error message:

TypeError: argument 'style': 'NoneType' object cannot be cast as 'str'

Am I doing something wrong?
Thanks for responding!

[FloezeTv]

Sorry, there's an error in the documentation.
The code should of course be

# Get machine and style from repository
machine = Repository.machines().get("example")
style = Repository.styles().get("tum") # <-- load from the `styles`-repository instead of the `machines`-repository

(Created #291 to fix the documentation)

Does this work for you?

[quantum-brutus]

Thanks for the response! (and sorry for the delay)

I now get the error message

thread '' panicked at /Users/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/wgpu-25.0.2/src/api/instance.rs:117:13:
No wgpu backend feature that is implemented for the target platform was enabled. See wgpu::Instance::enabled_backend_features() for more information.
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

pyo3_runtime.PanicException: No wgpu backend feature that is implemented for the target platform was enabled. See wgpu::Instance::enabled_backend_features() for more information.

It seems like it has to do with Rust but I am not sure as I am not knowledgeable in this language.

Just so you know i am running on MacOS 26.0.
Thanks a lot!