AetherPirate

You need to get it to open with Java. Try right-clicking, and choose to open it with Java

Try right clicking it and Run As Admin. If that does not work, grab the one for Linux and try that (works on Windows too)

Sorry, old link. Here is a working one: http://download.uskarian.net/technic/clearJavaEnvVars.bat

Try this http://tk.iamtrue.net/clearJavaEnvVars.bat

Search TekkitMain, click the rocketship.

Search for TekkitMain, and choose the rocketship. That is tekkit 1.6.4

I don't know much about troubleshooting solder, you'd have better luck here https://discord.gg/MpE4Y59

Try disabling your antivirus / firewall and try again

Something is wrong with way it is being hosted. That link gives a 302, when you need a 200. A 302 means a redirect, the zip file needs to be a direct link.

Attachments do not work, use pastebin. It is also worth checking if this is your issues:

After a mod moves this to the right topic, i can help

http://download.uskarian.net/technic/clearJavaEnvVars.bat close the launcher, run that, try playing

You don't launch servers that way. Make a start.bat that calls the forge universal Example: java -Xmx3G -jar NameOfYourForgeUniversal.jar This will allocate up to 3GB to your server, and run Forge, which is needed for any mods to load .

Did you increment your pack version in Modpack Settings?

Lets try fixing this on the Technic Discord, https://discord.gg/tanWRjC

Turn off your server, backup your world, delete the Twilight Forest dimension (7), and restart and test

There is a file called installedPacks at %AppData%\Roaming\.technic that is responsible for telling the launcher what packs you have, and where they live. Open it up with Wordpad and have a look What happens when you try to re-install "missing" packs?

Use the recommended version, 3.1.2 is broken.

Make sure the client configs and the server configs match.

Could you grab this log? C:\Users\Ziv\AppData\Roaming\.technic\modpacks\hexxit\crash-reports\crash-2017-04-21_09.45.55-client.txt

Mediafire does not work with the launcher.

pastebin a new log

Grab the newest Nvdia driver http://www.nvidia.com/Download/processFind.aspx?psid=85&pfid=610&osid=57&lid=1&whql=1&lang=en-us&ctk=0 if this does not help, pastebin this log: C:\Users\Ziv\AppData\Roaming\.technic\modpacks\hexxit\crash-reports\crash-2017-04-19_14.33.21-client.txt

If you have an Nvidia GPU, get this update: http://www.nvidia.com/Download/processFind.aspx?psid=85&pfid=610&osid=57&lid=1&whql=1&lang=en-us&ctk=0 If not, pastebin a log

Attachments do not work here, but I bet you have the Nvidia issue: http://www.nvidia.com/Download/processFind.aspx?psid=85&pfid=610&osid=57&lid=1&whql=1&lang=en-us&ctk=0 Grab that update, reboot, and try playing