I have 2 different Windows 2016 Servers running Drupal 8 and Drush 9 is installed on both but I have a Drush verison mismatch that I'm trying to fix.
I have this global composer.json file on both servers:
{
"require": {
"drush/drush": "9.*"
}
}
On my Test server, drush --version shows version 9.5.2.
On my Live server, drush --version shows version 9.7.0.
If I run composer global update drush/drush on my Test server, it doesn't update Drush and returns, "nothing to install or update".
I tried this:
composer global require drush/drush:9.7.0
and got this error:
Changed current directory to C:/Users/username/AppData/Roaming/Composer
./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
- Can only install one of: consolidation/site-alias[3.0.0, 1.1.11].
- Can only install one of: consolidation/site-alias[3.0.0, 1.1.11].
- Can only install one of: consolidation/site-alias[3.0.0, 1.1.11].
- drush/drush 9.7.0 requires consolidation/site-alias ^3.0.0@stable -> satisfiable by consolidation/site-alias[3.0.0].
- Installation request for drush/drush 9.7.0 -> satisfiable by drush/drush[9.7.0].
- Installation request for consolidation/site-alias (locked at 1.1.11) -> satisfiable by consolidation/site-alias[1.1.11].
Installation failed, reverting ./composer.json to its original content.
Comparing the line, "name": "consolidation/site-alias", in composer.lock in both environments, I see that Test has 1.1.11 and Live has 3.0.0.
I installed drupal/recommended-project and thought I followed the same steps on both so I'm not sure how they got out of sync. Any ideas?
What is the recommended fix?
