Hello, I had a similar problem when making my modpack. But now I have successfully made it. If you can say you've done all these steps your modpack should work just fine.
Make sure you have your version of forge named modpack.jar and put it in the bin folder (not modpack.jar.jar)
Make sure you've changed you end of your dropbox link from =0 to =1
Make sure you compress the FILES INSIDE (bin, config, mods, etc.). Select all of those folders, then press compress 5 items or whatever it says. Then you used the .zip it makes and put that in dropbox.
Modpack loads in vanilla
in Platform Pagoda
Posted
Still doesnt work...