Hello,
This is the third time making a modpack (the other two have failed rather miserably) and I have never encountered this issue before. I was wondering how I would fix this.
I've done a lengthy google search, tried multiple solutions which have not worked well. I would appreciate any help I could get. I am aware that, once the issue is fixed, there may be some conflicting ID's too, which I would also need help with.
Here's the modpack URL: http://www.technicpack.net/modpack/butter-loving-fun-pack.854589
Many thanks,
- John