问问Set the project BUILD_ALL_TPLs to be the Startup Project and run Build.该如何处理

问问Set the project BUILD_ALL_TPLs to be the Startup Project and run Build.
有个编译要求,

1.Set the project BUILD_ALL_TPLs to be the Startup Project and run Build. 
2.Set the terragrid to be the startup project and run ‘Build Only terragrid’. 



就是鼠标点击到BUILD_ALL_TPLs 上 然后右键build 就行吗? 还是需要先设置什么?

谢谢



[解决办法]
前面的两个编译要求是什么意思？不太懂