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Last active February 21, 2023 20:48
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Puma compiled without SSL support (RuntimeError)
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fix.md

When running a Rails project locally that needs SSL support you might get the following type of error:

... Puma compiled without SSL support (RuntimeError)

Here's how to fix it:

SO answer

If ruby -rpuma -e "puts Puma.ssl?" returns false then manually install Puma (not from the bundler gem file):

gem install puma

Still doesn't work? Check if the Gemfile has a specific puma version defined; you'll need to manually install that one:

gem install puma -v 5.6.4

ruby -rpuma -e "puts Puma.ssl?" should now return true, and running the Rails server should now work.

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