Drupal: Unable to create directory 'temporary: // update-extraction /'


When I try to install a module on a drupal 7.37 version I get following message:

 Unable to create directory 'temporary://update-extraction-9b760e0c/.

In the Configuration->Media->File System I have the ./path/to/tmp folder with 777 permissions

Any Idea?

Try to change the file path in Configuration > File System > Temporary Directory to home/youUserName/tmp