[FIXED] Problem with installing Laravel/ui in Laravel 8

Issue

Im trying to install laravel/ui but I get this error:

**Problem 1**
- laravel/tinker is locked to version v2.5.0 and an update of this package was not requested.
- laravel/tinker v2.5.0 requires illuminate/console ^8.0 -> found illuminate/console[v8.0.0, ...,     8.x-dev] but these were not loaded, likely because it conflicts with another require.
  **Problem 2**
- laravel/ui[v3.0.0, ..., 3.x-dev] require illuminate/console ^8.0 -> found illuminate/console[v8.0.0, ..., 8.x-dev] but these were not loaded, likely because it conflicts with another require.
- Root composer.json requires laravel/ui ^3.0 -> satisfiable by laravel/ui[v3.0.0, v3.1.0, 3.x-dev].

I tried:

composer require laravel/ui "^3.0" --dev

and also:

composer require laravel/ui  --dev

I always get the same error.

NB: Im using the latests version: Laravel 8.

Solution

Update manually composer.json file to have:

"laravel/framework": "^8.12",
"laravel/tinker": "^2.5",
"laravel/ui": "^3.0",

in it.

Run composer update to update packages to latest

Answered By - Marcin Nabiałek