New custom mod problems

[SageMoonblade]

This might not be the right place to post this but any help or letting me know the better location would be a big help. I have made mods to existing packs but I recently got the idea to make my own pack. I followed the directions of two different tutorials both working in 1.6.4 (one with and one without coremods folder). After making the modpack .rar file and uploading it to dropbox public folder I pasted the public link into the technic launcher modpack area on the dashboard for the website. Upon doing so I saved the pack and got the technic modpack link and pasted it into the launcher and hit play. The bar cycles for a few moments and the error "Error downloading file for the following pack Sage's Test Pack        Failed to download (my dropbox link)           Please consult the modpack auther.". I can tell the modpack file downloaded it is in the folder of the modpack right where it should be sitting in the cache folder with the right size even. Anyidea where I might have oopsed?

[planetguy]

Only Zip files work, not Rar. Java has APIs that make reading Zip files trivial, but the Rar format is kept under the ownership of its developers and there aren't libraries to open it in Java.

[SageMoonblade]

I changed the file to a zip and it seems to download ok and install but when it launches it drops me back to the launcher after a few seconds.

[GenPage]

Sounds like your modpack is crashing now that you have it downloading. Go to the modpack folder and look for the latest crash report. 

[plowmanplow]

Also, posting a link to your pack page so others can take a look at it can often help.

[thekian]

On you're pack editing page get the dropbox link and replace the "www." With "dl."