Joomla 4: Call to undefined method Joomla\CMS\Installer\Adapter\ComponentAdapter::get()

[ChrisG]

This error occurs when calling $parent->get('manifest')->version; in the postflight method of a component InstallerScript.

I'm guessing that a lot of people need to get the version string from the manifest, and I guess that $parent->get('manifest')->version; is no longer the right way to do it.

Does anyone know how to get the manifest version in Joomla 4 please?

[Michael Babker]

The extension adapters no longer extend JObject so yes, get() won't work anymore.  IIRC getManifest exists for this one, but it's been a bit since I touched or looked at that code so I may be misremembering.

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[ChrisG]

$parent->getManifest()->version;

Works great. You saved me a lot of time.

Thank you very much.