I have already made a mod in Forge 1.14.3 and everything worked there and I wanted to start with 1.8.9 modding today. But when I did everything that was in README.txt there were already errors in the example Mod. Then I saw that the imports had an error and looked and saw that the "libraries" folder was not installed. I did the installation again and it still didn't work.
And now I need help getting the "libraries" because I don't know what to do anymore.