How to: Troubleshooting emulator
If you encounter an error "***Process system isn't responding***" in the emulator, like below:
You could try:

* Increase the limit of the memory resource available to Docker Engine.

* Increase the amount of physical RAM on the emulator by setting / changing `hw.ramSize` in the AVD's configuration file (`config.ini`).  By default, it's not set and the default value is "96" (in megabytes).  You could simply set a new value via this command: `echo "hw.ramSize=1024" >> /root/.android/avd/
.avd/config.ini`