Materialsmight

Hi I looked up the solution to this problem and I tried following the steps that was posted in 2019,but I downloaded the lastest forge for 1.12.2 and it won't install my libraries, and when I try holding shift and right clicking it shows windows powershell in the drop-down menu, however when I click forge to open and install, a notepad document comes up with information, can I get any assistance with this problem?