Cannot change dependencies of configuration ':compile'

[DarrenZhang01]

After removing "<<" in line 96, I get the following issue:

I also come across building failure on Mac with the following message:

You can delete the "<<" symbol on line 96, this will solve the "leftShift()" problem.

Originally posted by @victorcai101 in #35 (comment)

[JiazhaoLi]

After solving the problem in line 96, i have the same problem in Line 107. Do you solve this problem? Thanks