Hack/Mine Nerd

I followed every single step, and this still pops up: If it doesn't load, this is what it"error unzipping file: C:\users\Veit\Roaming\.techniclauncher\ulti-modpack\cache\ulti-modpack-2.0.zip Also, if you REALLY want to see the picture, copy the picture link, or click this https://www.dropbox.com/s/pb61wxtyockikh4/Help.PNG

same as me......

It says that i can't resolve host name..... i am using the development build, do i have to use the recommended build?