PhpStorm tells me: "Namespace name doesn't match PSR 0/PSR 4 project structure"

Question

I'm using Laravel 5.0 and everything works fine.

However, I keep getting these warning messages. I have looked at the JetBrains docs, but I remain a bit foggy what to do about it.

Essentially, I am concerned that if I allow PhpStorm to automatically run "Detect PSR0 Namespace Roots" then it could break my code / project.

Not sure what is going on, what should I do?

Answer 1

If you use composer the more recent answer to synchronize with composer is a better option.

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PSR-4 namespace roots can specify a prefix which can be configured.

Here is the process:

1. Find the root of your namespace e.g src.
2. right click Mark Directory as Sources Root.
3. Menu -> File -> Settings -> Directories.
4. Click the pencil icon or p^ next to your Sources Root.
5. Enter the namespace prefix.

See PHPStorm configuring PHP namespaces

Answer 2

Easier than the last answers:

Go to the Settings windows: Languages & Frameworks -> PHP -> Composer and then, enable Sync IDE settings with composer.json in order to load the PSR-0 & PSR-4 set up.

PS: PhpStorm 2020.3.2 (Build #PS-203.7148.74, built on January 27, 2021)

I hope it's useful to everyone!