报错内容
The value specified for SourceVersion is not a valid commit ID
解决
官方给出的解答：
Thank you for your feedback! We have determined that this issue is not a bug. According to your screenshot, you put “Test” in Commit column that caused the error. If you want to build pervious version of commit, you should input full hash of the commit(40 characters) in the Commitcolumn. Or you could leave it empty, then the build will run with the latest commit.
大意就是：
要么commit长度超过40 characters，要么可以空着不填。
So 我选择空着不填，问题解决：
