adan@adan-HP-1000-Notebook-PC:~/wpscan$ sudo gem install bundler && bundle install --without test
Fetching: bundler-1.15.1.gem (100%)
Successfully installed bundler-1.15.1
Parsing documentation for bundler-1.15.1
Installing ri documentation for bundler-1.15.1
Done installing documentation for bundler after 10 seconds
1 gem installed
There was an error while trying to write to /home/adan/wpscan/.bundle/config.
It is likely that you need to grant write permissions for that path.
i don't know why, this problem always follow me