- Exit Ark
- Unsubscribe to all mods on Ark Steam Workshop
- Go to folders and go to Program Files (x86)\Steam\steamapps\common\ARK\ShooterGame\Content\Mods
- Delete all files
- Verify your Ark files via Steam (right click on Ark > Properties > Local Files > Verify Integrity of Game Files
- Once done, subscribe to all the mods you need using the relevant mod collection
- Load Ark and allow it to install mods
I have the error 'Failed to install map mod'