Problems upgrading Laravel 5.4 to 5.6

Question

I'm using Laravel Framework 5.4.32, and after following the instructions in the two upgrade guides for 5.5.0 From 5.4, and 5.6.0 From 5.5, and the consensus that it's safe to do an upgrade for both in one go, I went ahead with a composer upgrade, got a list of problems but no guidance on how to fix them:

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

  Problem 1
    - Conclusion: don't install laravel/framework v5.6.29
    - Conclusion: don't install laravel/framework v5.6.28
    - Conclusion: don't install laravel/framework v5.6.27
    - Conclusion: don't install laravel/framework v5.6.26
    - Conclusion: don't install laravel/framework v5.6.25
    - Conclusion: don't install laravel/framework v5.6.24
    - Conclusion: don't install laravel/framework v5.6.23
    - Conclusion: don't install laravel/framework v5.6.22
    - Conclusion: don't install laravel/framework v5.6.21
    - Conclusion: don't install laravel/framework v5.6.20
    - Conclusion: don't install laravel/framework v5.6.19
    - Conclusion: don't install laravel/framework v5.6.18
    - Conclusion: don't install laravel/framework v5.6.17
    - Conclusion: don't install laravel/framework v5.6.16
    - Conclusion: don't install laravel/framework v5.6.15
    - Conclusion: don't install laravel/framework v5.6.14
    - Conclusion: don't install laravel/framework v5.6.13
    - Conclusion: don't install laravel/framework v5.6.12
    - Conclusion: don't install laravel/framework v5.6.11
    - Conclusion: don't install laravel/framework v5.6.10
    - Conclusion: don't install laravel/framework v5.6.9
    - Conclusion: don't install laravel/framework v5.6.8
    - Conclusion: don't install laravel/framework v5.6.7
    - Conclusion: don't install laravel/framework v5.6.6
    - Conclusion: don't install laravel/framework v5.6.5
    - Conclusion: don't install laravel/framework v5.6.4
    - Conclusion: don't install laravel/framework v5.6.3
    - Installation request for tcg/voyager ^0.11.14 -> satisfiable by tcg/voyager[v0.11.14].
    - Conclusion: don't install laravel/framework v5.6.2
    - Conclusion: don't install laravel/framework v5.6.1
    - tcg/voyager v0.11.14 requires illuminate/support ~5.3.0|~5.4.0 -> satisfiable by laravel/framework[v5.4.36], illuminate/support[v5.3.0, v5.3.16, v5.3.23, v5.3.4, v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - Can only install one of: laravel/framework[v5.6.0, v5.4.36].
    - don't install illuminate/support v5.3.0|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.3.16|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.3.23|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.3.4|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.0|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.13|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.17|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.19|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.27|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.36|don't install laravel/framework v5.6.0
    - don't install illuminate/support v5.4.9|don't install laravel/framework v5.6.0
    - Installation request for laravel/framework 5.6.* -> satisfiable by laravel/framework[v5.6.0, v5.6.1, v5.6.10, v5.6.11, v5.6.12, v5.6.13, v5.6.14, v5.6.15, v5.6.16, v5.6.17, v5.6.18, v5.6.19, v5.6.2, v5.6.2
0, v5.6.21, v5.6.22, v5.6.23, v5.6.24, v5.6.25, v5.6.26, v5.6.27, v5.6.28, v5.6.29, v5.6.3, v5.6.4, v5.6.5, v5.6.6, v5.6.7, v5.6.8, v5.6.9].

When I ran php artisan --version afterwards, I got an error:

[Symfony\Component\Debug\Exception\FatalThrowableError] Call to undefined method App\Console\Kernel::load()

So something's changed, although the application continues to work.

Aside from adding $this->load(__DIR__.'/Commands'); to the "commands()" method in "Kernel.php", the main changes were in "composer.json", as advised in the two upgrade guides.

Any ideas?

Answer 1

Check the Requirement in official website

Answer 2

The tcg/voyager package is the problem

tcg/voyager v0.11.14 requires illuminate/support ~5.3.0|~5.4.0

You're installing 5.6 but it needs 5.4.

Upgrade it to version 1.1