Based on laravel 5.5\5.6\5 X solution to the failure of installing laravel ide helper

be based on laravel5.5\5.6\5.x install laravel-ide-helper The solution to failure

1、 Install as shown in the figure laravel-ide-helper Failed cases ：

laravel-ide-helper An error message appears ：

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - barryvdh/laravel-ide-helper 2.12.x-dev is an alias of barryvdh/laravel-ide-helper dev-master and thus requires it to be installed too.
    - barryvdh/laravel-ide-helper[dev-master, v2.12.0, ..., v2.12.2] require illuminate/console ^8 || ^9 -> found illuminate/console[v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev] but these were not loaded, likely because it conflicts with another require.
    - Root composer.json requires barryvdh/laravel-ide-helper ^2.12 -> satisfiable by barryvdh/laravel-ide-helper[v2.12.0, v2.12.1, v2.12.2, 2.12.x-dev (alias of dev-master)].


Installation failed, reverting ./composer.json and ./composer.lock to their original content.

2、 Causes and solutions ：
because laravel Update to 8.x Version of , When using the command to install , Install for default 2.2 Version of , Conflict with the information in the framework , Choose to install other versions to eliminate interference .

Select another version

composer require --dev barryvdh/laravel-ide-helper 2.8

Display status correctly ：

install ide-helper Other operations remaining ：