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rosseria_arduino ros_lib permission denied

Hello, I'm new in ROS and I'm trying to setup rosserial arduino following the steps of the tutorial:

    cd <ws>/src
    git clone https://github[dot]com/ros-drivers/rosserial.git
   `cd <ws>`
  catkin_make install
  source <ws>/install/setup.bash

    cd <sketchbook>/libraries
  rm -rf ros_lib
  rosrun rosserial_arduino .

but when I enter the last command I get this error message:

OSError: [Errno 13] Permission denied: '/home/jaime/sketchbook/libraries/ros_lib'

I need to know what to do in this case. Thank you very much!

Apparently is about a permission to make a folder into the ~/sketchbook/libraries folderbecause I can run the same last code outside that folder and it works.