Minecraft launcher problem?

hi guys i just got a new mac and when launching minecraft my log says at the end:

[09:59:31 ERROR]: Gave up trying to download https://libraries.minecraft.net/com/google/guava/guava/17.0/guava-17.0.jar for job Version & Libraries [09:59:31 ERROR]: Job Version & Libraries finished with 32 failure(s)! (took 0:01:01.480)

Please help me really soon

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