Installation issue

[DevObs1]

By running the following command : composer require iexbase/tron-api, i have this errors :

Using version ^3.1 for iexbase/tron-api
./composer.json has been updated
Running composer update iexbase/tron-api
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - iexbase/tron-api[v3.1.1, ..., v3.1.2] require guzzlehttp/guzzle ^7.0 -> found guzzlehttp/guzzle[dev-master, 7.0.0-beta.1, ..., 7.2.0] but the package is fixed to 6.5.5 (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.
    - Root composer.json requires iexbase/tron-api ^3.1 -> satisfiable by iexbase/tron-api[v3.1.1, v3.1.2].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

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

[miaoxn]

composer remove iexbase/tron-api

composer require guzzlehttp/guzzle

composer require iexbase/tron-api