Alfy

Hi! So I'm new to minecraft modding and decided to follow some tutorial to setup everything. I followed them and had no issues up to the point where I opened eclipse and saw that almost all the lines have an error. I imported the recommended 1.15.2 MDK file (31.1.0) into a folder called "TutorialMod" to practice, ran "gradlew genEclipseRuns" & "gradlew eclipse" on cmd and had no error messages with that so all good, and finally imported the project in Eclipse to be greeted by all this errors. Anyone knows how to fix this? (note, I also tried to do it in IntelliJ changing the gradle codes and it also gives me the line errors there)