Unable get mailgun into my app

[flexthemes]

Could not parse version constraint v2.: Invalid version string "v2." while composer update. any solution ?

[Bogardo]

If you've got v2. in your composer.json, try changing it to v2.*.
If that is not the case could you please copy the exact line from your composer.json?

[flexthemes]

now its working using 2.* without 'v' :)

[Bogardo]

Great!