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crystal-langkemal

Kemal framework - undefined constant HTTP::FormData

I'm trying to set up a web app using the kemal framework written in the crystal language. I followed the tutorial mentioned in the getting started guide here

However, I can't get even the most basic web app to work. The line Kemal.run gives an error which traces to the line lib/kemal/src/kemal/param_parser.cr:69 and shows this error undefined constant HTTP::FormData.

I found the HTTP::FormData module https://github.com/RX14/multipart.cr. Adding this as a dependency and requiring it does not help.

Thanks in advance

Solution

  • You are probably using an old version of Crystal. Check with crystal -v.

    HTTP::FormData has been added in Crystal 0.21.0.