You had errors in your syntax - binary has wrong parameters

[cleankod]

mermaid --help

Outputs:

Usage: mermaid [options] <file>...

file    The mermaid description file to be rendered

Options:
  -s --svg          Output SVG instead of PNG (experimental)
  -p --png          If SVG was selected, and you also want PNG, set this flag
  -o --outputDir    Directory to save files, will be created automatically, defaults to `cwd`
  -h --help         Show this message
  -v --verbose      Show logging
  --version         Print version and quit

There is no -i option anymore.

[timofurrer]

which tool for mermaid are you using?

The official mermaid-cli still seems to have it.