Lack of a "Force Update" button.

[Shalashalska]

I have a mildy corrupted tekkit install that crashes my game whenever I use a vanilla crafting bench. It's not java, my normal minecraft, technic, and yogbox all work fine. It would be nice if there was a button that simply force the update procedure for the currently selected modpack, so I could reinstall tekkit without problems.

[The Merchant of Menace]

Press the options button and choose "Clear Cache"

This deletes the contents of the specific mod's folder and redownloads it.

[Cheap Shot]

Naw don't do any of that shit. If it's only tekkit then just go into .techniclauncher and delete the tekkit folder after backing up your saves. If it can't find a folder it will redownload.

[17kimd]

Just delete the techniclauncher folder in your appdata folder. Then open the launcher. This redownloades everything and usually fixes up issues.