Error: Failed to launch the browser process!

[ldesousa]

Error: Failed to launch the browser process!

[aloisklink]

Are you running Ubuntu 24.04 and mmdc in a docker/podman container?

If so, you'd either need to add the --cap-add=SYS_ADMIN (not recommended!) to your container, or run puppeteer with the --no-sandbox arg (which is dangerous, but should be mostly safe, as long as there is nothing else in the container that you care about).

You can do this by creating a puppeteerConfig.json file with the contents:

{
  "args": ["--no-sandbox"]
}

Then running mmdc with mmdc --puppeteerConfigFile path/to/my/puppeteerConfig.json -i PROV.mm -o PROV.png.

As an example, you can see how the official minlag/mermaid-cli docker image does this with:

• Dockerfile
• puppeteer-config.json

There's also some alternative steps which are recommended by the Puppeteer team at https://pptr.dev/troubleshooting#setting-up-chrome-linux-sandbox, but I haven't tested them yet.

[ldesousa]

Are you running Ubuntu 24.04 and mmdc in a docker/podman container?

No. This issue does not concern Docker.