Fix: Guzzle Version Error

  • I am getting this fatal error when saving an API key in the plugin:

    Fatal error: Cannot use lexical variable $eventName as a parameter name in .../wp-content/plugins/open-badge-factory/vendor/guzzlehttp/guzzle/src/Event/Emitter.php on line 48

    Looks like this Guzzle version needs to be bumped up to be compatible with PHP v7.1+. This error is resolved when you use the latest v5.3 guzzle library found here:

    https://github.com/guzzle/guzzle/tree/5.3

    Simply replace the files here with the latest version of guzzle v5.3:

    ../vendor/guzzlehttp/guzzle

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