composer error while updating “.git directory is missing”

Question

When I Updating zf-commons/zfc-admin using composer, it gives an RuntimeException error saying that

[RuntimeException]
The .git directory is

Answer 1

The easiest way is to remove the install folder of that component before making the composer update

rm -rf  /var/www/site2.com/vendor/zf-commons/zfc
composer update

Answer 2

delete zf-commons/zfc-admin then execute composer update. usually you are not adviced to commit zf-commons/zfc-admin to your repository

Answer 3

When ever I have "issues" with composer the first thing I do is delete the vendor folder and do a "composer update"

You could also try to delete just that one component "vendor/zf-commons"