Dependancies Not Met

I am having a problem installing add ons. For eg. I will use the ESPN add on but many are like this. I keep getting the message that the install failed because dependancies have not been met I have tried everything to get them met but I have not figured out how to do this. I know there is a way to edit a file through opening the file in 7-zip but I can’t figure out how to do this. Does anybody know of an easier way to do this? If not maybe somebody could give me a fairly detailed way of doing it with 7-zip. Any help will be greatly appreciated as I am getting pretty frustrated trying to figure this out. Hope everybody had a Merry Xmas and Happy New Year. TIA