every time i try to open rift {first time btw} it stops and says Failed to download file. mixin-0.7.11-SNAPSHOT.jar and
Failed to download file. mixin-0.7.11-SNAPSHOT.jar
Name: mixin-0.7.11-SNAPSHOT.jar
URL: https://www.dimdev.org/maven/org/dimdev/mixin/0.7.11-SNAPSHOT/mixin-0.7.11-SNAPSHOT.jar
Error details: UNKNOWN/-118
Filename on disk: mixin-0.7.11-SNAPSHOT.jar
Path: C:\Users\عبير\AppData\Roaming.minecraft\libraries\org\dimdev\mixin\0.7.11-SNAPSHOT\mixin-0.7.11-SNAPSHOT.jar
Exists: false

mee too
but i can not download Rift-jitpack-SNAPSHOT.jar
[error message]
Failed to download file. Rift-jitpack-SNAPSHOT.jar
Name: Rift-jitpack-SNAPSHOT.jar
URL: https://www.jitpack.io/com/github/Chocohead/Rift/jitpack-SNAPSHOT/Rift-jitpack-SNAPSHOT.jar
Error details: HTTP 404:
Filename on disk: Rift-jitpack-SNAPSHOT.jar
Path: C:\Users\user\AppData\Roaming.minecraft\libraries\com\github\Chocohead\Rift\jitpack-SNAPSHOT\Rift-jitpack-SNAPSHOT.jar
Exists: false

@todonote temp fix in the versions json of jitpack snapshot: https://cdn.discordapp.com/attachments/469712904954839051/574022328950718482/unknown.png

@vacla thanks. I was able to fix it