The solution to the version error of Laravel guzzlehttp/guzzle involves updating the version of the package:
- Open the composer.json file in the root directory of your Laravel project.
- Look for the "guzzlehttp/guzzle" package and check its version.
- Update the version to a compatible one that works with your Laravel version.
- Run the command "composer update" in your terminal to update the package.
- If the problem persists, try deleting the vendor folder and the "composer.lock" file and then run "composer install" to reinstall all packages.
- If none of the above solutions work, try removing the "guzzlehttp/guzzle" package and then reinstalling it.
Note: Always make sure to check the compatibility of the packages you want to install with your Laravel version before installing them.