Update FAQ.md

vskarleas · web-flow · commit 3edd7fd1ed3e · 2024-10-17T08:05:41.000+02:00
diff --git a/docs/FAQ.md b/docs/FAQ.md
@@ -23,6 +23,14 @@ First, make sure that the package is installed; in the example case it would be
 ### Why does autocomplete not work in zsh environments?
 You will need to install https://github.com/conda-incubator/conda-zsh-completion
 
+### How to fix RLException error on MacOS(M Chip & Intel CPUs) ?
+If you run into "RLException: Unable to contact my own server" error on MacOS here are the instructions that you need to follow in order to resolve that issue:
+- Set up ROS_MASTER URI at 127.0.0.1 on port 11311 : `export ROS_MASTER_URI=http://127.0.0.1:11311`
+- Set up ROS_HOSTNAME : `export ROS_HOSTNAME=127.0.0.1`
+- Open the hosts file with a text editor like nano: `sudo nano /etc/hosts`
+- Add the following lines if they are not already present: `127.0.0.1   macbookpro` and `127.0.0.1   localhost`
+- Then save the file and restart your terminal.
+
 ### Can I use RoboStack in a non-conda virtual environment?
 RoboStack is based on conda-forge and will not work without conda. However, check out [rospypi](https://github.com/rospypi/simple) which can run in a pure Python virtualenv. rospypi supports tf2 and other binary packages.
 
