just not luanching

Failed to download file.
Name: idle2.ogg
URL: https://resources.download.minecraft.net/f0/f094c30d1b70fbd1ce2f7f047a6139a3eac30991
Error details: Could not resolve: resources.download.minecraft.net (Could not contact DNS servers)
Filename on disk: f094c30d1b70fbd1ce2f7f047a6139a3eac30991
Path: /Users/williamseidl/Library/Application Support/minecraft/assets/objects/f0/f094c30d1b70fbd1ce2f7f047a6139a3eac30991
Exists: Nonexistent

I have just reinstalled Minecraft after completely uninstalling (due to another issue with the launching of the game) thinking that it would work again. but obviously not im new here and I really want to find a fix I'm on mac and i just cant seem to find a fix, thanks