Trying to create a modpack

[rjwaters]

Launcher Version: 378

Operating System: windows 7 64bit

Java Version: current

Antivirus Program: Avast

Description of Problem:

Trying to create a modpack (not really entirely certain I should be posting this here but it seems like the best place I can find) I created a zip and uploaded it to drop box, put the dropbox link in and go to download the mudpack, it fails error in opening zip file please consult the mudpack author, I don't know how to fix this please help.

modpack is http://www.technicpack.net/api/modpack/my-personal-modlist it was just going to be a personal use modpack so as to enable more ram usage but I cant get it to work please help

Error Messages:

error in opening zip file

please consult the modpack author

Error Log:

[Munaus]

Platform Pagoda is for questions concerning custom modpacks. Try reading this thread.