laravel [InvalidArgumentException] Script "post-install-cmd" is not defined in this package

Question

Laravel 5.5 was released yesterday and I am trying to install, but i have a problem after installing the update. The output:

[InvalidArgumentException] Script "post-install-cmd" is not defined in this package"

How can I fix this error?

Answer 1

Do composer global update before laravel new <project-name> and you'll be alright. It will update your laravel installer to its latest version to support Laravel 5.5 LTS.

see comment in Fixed composer's invalid argument exception