Laravel 502 Bad Gateway when starting Laravel Valet — Simple solution

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There are many solutions suggested here (link). There is another solution here (link).

The simple solution for solving every hard problem is to understand exactly what are you doing, it takes time but answers always!

The solution works for me is:

valet stop-->> you see: Valet services have been stopped.
valet uninstall
-->> you see: Valet has been uninstalled.

Then make sure the ~/.composer/vendor/bin directory is in your system's "PATH".

Then:

composer global require laravel/valet

You may want to restart your computer. Take a deep breath :)

brew update--> it takes time ......

Now is the turn to uninstall php and install a new version or switch between php versions.

Option A:
for uninstall you can follow this link. But it is not necessary to uninstall the php version you have now. Since you have another option B in laravel valet to switch between the php version. Although If you follow the above link to remove php entirely, there is no problem at all. Now I assume you want to uninstall php. In the uninstallation process you will reach the following command:

---- > be careful !brew cleanup

If you do brew cleanup you will LOSE your connection to database because of Link which the solution is this link.

Now you are going to install a new version of php. Be careful for the following command!:

brew install php

This will install/upgrade the php version to 7.3 which brings some bugs as Link1, Link2.

So you can install the lower versions of php by:

brew install php@7.2--> it takes time ......

Then:

brew services start php@7.2

Then:

valet install--> you see: Valet installed successfully!

It is done! and your laravel valet works fine.

Option B:

Instead of uninstall all php version entirely you can install the version you want and switch/link the valet to that version simply by:

valet use php@7.2

and then

valet install

It’s done!

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Web geek, Self-taught full-stack web developer, Learning Python, Laravel, Vuejs, UX/UI design, Nuclear Physicist PhD

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