Just like anything else Jailbreaking comes with a few obstacles. However, these hurdles are well worth the trouble once you understand how to fix them.
How To Fix http-win.cpp:158 Cydia Impactor Error Using Windows on iOS 10.2 Jailbreak Yalu102
Common Cydia Error Fix iOS 10 to 10.2
How to fix common errors seen on screen when opening Cydia.