Failure to Launch

Failed to download file.
Name: af_za.json
URL: https://resources.download.minecraft.net/1c/1c72129f3ecd16213d71dd6865ec265925aa6d40
Error details: Could not resolve: resources.download.minecraft.net (Timeout while contacting DNS servers)
Filename on disk: 1c72129f3ecd16213d71dd6865ec265925aa6d40
Path: C:\Users\D\AppData\Roaming\.minecraft\assets\objects\1c\1c72129f3ecd16213d71dd6865ec265925aa6d40
Exists: Nonexistent