The idiots who designed my app (libimobiledevice) I'm trying to build from scratch apparently decided to call a fatal error "warning." After trying to deal with further errors further down the terminal readout, I finally looked at where it started going wrong and found this error: cython version >=3.0.0 is required. You have 0.29.14 . I went back and installed pip and them cython. Cython says it's installed after checking, and the right version too. What is causing this? I tried installed pip and then cython, reatarting computer, making sure python development package was installed. Continue reading...