':runtimeClasspathCopy'. can't be resolved when syncing with gradle after opening mdk

[Bricked_out]

When trying to open forge's MDK setup for making mods, I get an error reading: "

Could not resolve all files for configuration ':runtimeClasspathCopy'.
> Could not find net.minecraftforge:forge:1.18.1-39.0.75_mapped_official_1.18.1.
  Searched in the following locations:
    - file:/C:/Users/K1/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.18.1-39.0.75_mapped_official_1.18.1/forge-1.18.1-39.0.75_mapped_official_1.18.1.pom
    - file:/C:/Users/K1/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.18.1-39.0.75_mapped_official_1.18.1/forge-1.18.1-39.0.75_mapped_official_1.18.1.jar
  Required by:
      project :

Possible solution:
 - Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html", I'm not familiar with mechanics with gradle, so I'm left puzzled on what do to, I've tried looking up "Could not resolve all files for configuration ':runtimeClasspathCopy'.", but I couldn't find anything to help me, a second error I have received is "Caused by: java.util.zip.ZipException: zip END header not found", I'm not sure if its related or not. I am using IntelliJ (community edition) to make mods, in the top of the tree with an error, the full issue is here: https://pastebin.com/GBP7GL62 if there is any solution to these problems, let me know, have a good day/night. (edit note, I was a bit in a rush to type this, so if I wasn't supposed to do something in this post, let me know.) 

Edited February 12, 2022 by Bricked_out