Step-by-step-installation-guide.md

@@ -69,6 +69,11 @@ If that doesn't work, the issue might be Anaconda not linking to the external gc
 conda install gcc_linux-64
 ```
 
+`ModuleNotFoundError: No module named 'Cython'` (Windows): Install or update Visual Studio Build Tools and try compiling again. 
+
 ## Errors related to Gepard operation
 
 `no module named gepard`: Please make sure thet you are attempting to start Gepard from it's parent folder, i.e. the location containing the folder "gepard".
+
+`ImportError: cannot import name 'tsp'`: If your setup includes multiple Anaconda environments, tsp build and gepard operation must be done in the same environment.
+