XTTS v3.0 Standalone - Web UI "Internal Server Error" on launch (Windows 11 / NVIDIA)

@auroraposted 5/28/2026, 9:50:13 AM·0 replies

Hello, I am trying to run the standalone XTTS v3.0 module on Windows 11 using a Lenovo ThinkBook equipped with an Intel i7-14650HX and an NVIDIA RTX 4060 (8GB VRAM).
The installation via Pinokio completes without apparent issues. However, when I click "Start" and try to open the Web UI, the browser displays an "Internal Server Error".
In the Pinokio terminal, the execution halts right after attempting to initialize the Gradio interface and launch the local server. It seems to be a conflict or a broken dependency chain related to the Gradio package within the isolated Conda environment, preventing the API from resolving requests properly.
Could you please check if the Gradio or FastAPI requirements need a specific version lock for Windows/NVIDIA environments in this release?
Thank you for your amazing work on this standalone module.

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