Build Source Code:
Follow the steps in https://thingsboard.io/docs/user-guide/install/building-from-source/
If there is a failure, follow the steps:
In the Build steps:
In /thingsboard/ui/node_modules/node-sass/scripts/:
node ./install.js
In /thingsboard folder:
mvn clean install -DskipTests
原文：https://www.cnblogs.com/dataclimber/p/9599184.html