Can support PHP8.1

[smallk1002]

laravel
9.1

php
8.1.5

Since php 8.1 has been updated

laravel 9 can't seem to install

Can support PHP8.1

error

  Problem 1
    - maatwebsite/excel[3.1.36, ..., 3.1.40] require phpoffice/phpspreadsheet ^1.18 -> satisfiable by phpoffice/phpspreadsheet[1.18.0, ..., 1.24.0].
    - maatwebsite/excel 3.1.x-dev requires phpoffice/phpspreadsheet ^1.21 -> satisfiable by phpoffice/phpspreadsheet[1.21.0, 1.22.0, 1.23.0, 1.24.0].
    - maatwebsite/excel[3.1.0, ..., 3.1.25] require php ^7.0 -> your php version (8.1.5) does not satisfy that requirement.
    - maatwebsite/excel[3.1.26, ..., 3.1.35] require illuminate/support 5.8.*|^6.0|^7.0|^8.0 -> found illuminate/support[v5.8.0, ..., 5.8.x-dev, v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev] but these were not loaded, likely because it conflicts with another require.
    - phpoffice/phpspreadsheet[1.18.0, ..., 1.22.0] require psr/simple-cache ^1.0 -> found psr/simple-cache[1.0.0, 1.0.1] but the package is fixed to 3.0.0 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - phpoffice/phpspreadsheet[1.23.0, ..., 1.24.0] require psr/simple-cache ^1.0 || ^2.0 -> found psr/simple-cache[1.0.0, 1.0.1, 2.0.0, 2.x-dev] but the package is fixed to 3.0.0 (lock file version) by a partial upd
ate and that version does not match. Make sure you list it as an argument for the update command.
    - Root composer.json requires maatwebsite/excel ^3.1 -> satisfiable by maatwebsite/excel[3.1.0, ..., 3.1.x-dev].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.
You can also try re-running composer require with an explicit version constraint, e.g. "composer require maatwebsite/excel:*" to figure out if any version is installable, or "composer require maatwebsite/excel:^2.1" 
if you know which you need.

[patrickbrouwers]

Please read the installation guide in the documentation.

[smallk1002]

OK, thanks

laravel 9
need to execute first

composer require psr/simple-cache:^2.0 maatwebsite/excel

and then proceed

composer require maatwebsite/excel

This is my oversight to the documentation
Excuse me

[patrickbrouwers]

No oversight in the docs, installation instructions are correct. You don't need the 2nd require, only the first; as is described in the docs.