thingsboard编译出错记录：
[ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.12.0:install-node-and-yarn (install node and npm) on project ui-ngx: The plugin com.github.eirslett:frontend-maven-plugin:1.12.0 requires Maven version 3.6.0 -> [Help 1]
解决方案：
删掉 E:\Repositories\Maven\com\github\eirslett文件夹（Maven repository所在的文件夹\com\github\eirslett）
