Error on installing via composer

[castroalves]

Hi!

I'm using Laravel 5.6.11 and I'm getting the following errors when trying to install via composer:

Using version ^1.2 for princealikhan/laravel-mautic-api
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Conclusion: don't install laravel/framework v5.6.11
    - graham-campbell/manager v3.0.0 requires illuminate/support 5.1.*|5.2.*|5.3.*|5.4.*|5.5.* -> satisfiable by illuminate/support[v5.1.1, v5.1.13, v5.1.16, v5.1.2, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.1.6, v5.1.8, v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.2.6, v5.2.7, 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, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39].
    - princealikhan/laravel-mautic-api v1.2.1 requires illuminate/support 5.0.*|5.1.*|5.2.*||5.3.*|5.4.*|5.5.* -> satisfiable by illuminate/support[v5.0.0, v5.0.22, v5.0.25, v5.0.26, v5.0.28, v5.0.33, v5.0.4, v5.1.1, v5.1.13, v5.1.16, v5.1.2, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.1.6, v5.1.8, v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.2.6, v5.2.7, 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, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39].
    - illuminate/support v5.2.43 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.2.45 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.3.0 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.3.16 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.3.23 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.3.4 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.0 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.13 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.17 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.19 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.27 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.36 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.4.9 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.0 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.16 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.17 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.2 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.28 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.35 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.36 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.37 conflicts with laravel/framework[v5.6.11].
    - illuminate/support v5.5.39 conflicts with laravel/framework[v5.6.11].
    - don't install illuminate/support v5.5.33|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.5.34|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.1|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.13|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.16|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.2|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.20|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.22|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.25|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.28|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.30|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.31|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.41|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.6|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.1.8|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.0|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.19|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.21|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.24|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.25|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.26|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.27|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.28|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.31|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.32|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.37|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.6|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.2.7|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.0|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.22|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.25|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.26|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.28|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.33|don't install laravel/framework v5.6.11
    - don't install illuminate/support v5.0.4|don't install laravel/framework v5.6.11
    - Installation request for laravel/framework (locked at v5.6.11, required as 5.6.*) -> satisfiable by laravel/framework[v5.6.11].
    - princealikhan/laravel-mautic-api v1.2.2 requires graham-campbell/manager ^3.0 -> satisfiable by graham-campbell/manager[v3.0.0].
    - Installation request for princealikhan/laravel-mautic-api ^1.2 -> satisfiable by princealikhan/laravel-mautic-api[v1.2.1, v1.2.2].

Could you help me please?

[andreladocruz]

Same here