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+## Frequently Asked Questions
+
+1. I am not able to run SBHS with plant-controller block of Sandhi. <br>
+
+Mostly you don't have sufficient permissions to access /dev/ttyUSB0 (which is SBHS device node in Ubuntu). To solve this, just add your user to _dialout_ group.
+	
+	sudo adduser `whoami` dialout
+**Logout User** and check.