# Go to "electron-4.0.3" folder
cd electron-4.0.3
# Install packages
yarn install
# Start project
yarn start
# Go to "electron-4.0.4" folder
cd ../electron-4.0.4
# Install packages
yarn install
# Start project
yarn start
Observe that the expected and actual output match in electron 4.0.3 and differ in electron 4.0.4!