I chose Python as my default language, then changed it to c# based on this post. After doing that when I load the Boot Camp first tutprial and submit anything I see this in console:

 

9 | 14:48:43:
Submitting Answer for task `Boot Camp/Algorithmic Trading with FOREX/Buy and Hold/Request Forex Data`
10 | 14:48:43:
Building Project ID: 2051196 Content Signature: 5420cfe92dcbd2b6f7b6ccb28d3ea71c
11 | 14:48:43:
Build Error: File: Line:0 Column:0 - No python files found to compile.