ImportError: cannot import name 'SolaraViz' from 'mesa.visualization'

[budennovsk]

Hello, after updating to the latest #201, the visualization stopped working. I noticed this issue using the example 'https://github.com/projectmesa/mesa-examples/tree/main/examples/hotelling_law'. In the 'app.py' file, the import 'from mesa.visualization import SolaraViz, make_plot_measure' is causing the problem.

[EwoutH]

Thanks for reporting a potential issue! Which exact Mesa version are you using?

We also updated the SolaraViz API recently. Please check:

• The migration guide
• Implement new SolaraViz API mesa#2263

Edit: this is likely caused by:

• update examples to use new solara_viz #193

Does updating to the latest pre-release (3.0.0a5) resolve this issue?

[budennovsk]

[budennovsk]

You are correct, installing version 3.0.0a5 resolved the issue. Thank you!

[EwoutH]

Great to hear! Make sure to check out the migration guide and changelog, we changed quite a lot.

We're close to a 3.0 beta release, so any feedback on 3.0 and it's documentation is appreciated!

By the way, our old examples for Mesa 2.x are also still available if needed. See #148.