diff --git a/README.md b/README.md
index 4cd0344..0bc8c04 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,9 @@ The following steps describe how you can create a local copy of this repository
 * Remember to run `source ~/<workspace_path>/install/local_setup.sh` after every build.  
 In order to avoid this repetitive command, add line 23-27 from [_.bashrc_](https://egit.irs.uni-stuttgart.de/RoverLehre/ROS2_pubsub/src/branch/master/non-ros-files/bashrc_overlay.bash) to your shell startup script for every overlay you want to source. This script runs everytime you start a new console, thus loading your overlays automatically. This is very handy if you are working with multiple _colcon_ workspaces (overlays) simultaneously.
 
+## Deprecation Error when building
+Solution: https://answers.ros.org/question/386341/ros2-userwarning-usage-of-dash-separated-install-scripts-will-not-be-supported-in-future-versions-please-use-the-underscore-name-install_scripts/
+
 
 ## Workshop Content
 In this workshop you will: