Commons Error Installing Forge

[Teh]

Hi, a friend of mine keeps trying to install forge on his mac laptop but he keeps running into an error that reads "commons-io commons-io 2.4". I know very little about how all this works. He has a JDK which he installed from oracle here: https://www.oracle.com/java/technologies/javase-downloads.html

I'll put the log for the forge installer at the bottom.

I really don't know much about this so if you could simplify as much as possible that would be apreaciated.

 

Extracting json
Considering minecraft client jar
Downloading libraries
Considering library net.minecraftforge:forge:1.16.4-35.1.4
  File exists: Checksum validated.
Considering library org.ow2.asm:asm:7.2
  File exists: Checksum validated.
Considering library org.ow2.asm:asm-commons:7.2
  File exists: Checksum validated.
Considering library org.ow2.asm:asm-tree:7.2
  File exists: Checksum validated.
Considering library org.ow2.asm:asm-util:7.2
  File exists: Checksum validated.
Considering library org.ow2.asm:asm-analysis:7.2
  File exists: Checksum validated.
Considering library cpw.mods:modlauncher:8.0.6
  File exists: Checksum validated.
Considering library cpw.mods:grossjava9hacks:1.3.0
  File exists: Checksum validated.
Considering library net.minecraftforge:accesstransformers:2.2.0-shadowed
  File exists: Checksum validated.
Considering library net.minecraftforge:eventbus:3.0.5-service
  File exists: Checksum validated.
Considering library net.minecraftforge:forgespi:3.2.0
  File exists: Checksum validated.
Considering library net.minecraftforge:coremods:3.0.0
  File exists: Checksum validated.
Considering library net.minecraftforge:unsafe:0.2.0
  File exists: Checksum validated.
Considering library com.electronwill.night-config:core:3.6.2
  File exists: Checksum validated.
Considering library com.electronwill.night-config:toml:3.6.2
  File exists: Checksum validated.
Considering library org.jline:jline:3.12.1
  File exists: Checksum validated.
Considering library org.apache.maven:maven-artifact:3.6.0
  File exists: Checksum validated.
Considering library net.jodah:typetools:0.8.1
  File exists: Checksum validated.
Considering library org.apache.logging.log4j:log4j-api:2.11.2
  File exists: Checksum validated.
Considering library org.apache.logging.log4j:log4j-core:2.11.2
  File exists: Checksum validated.
Considering library net.minecrell:terminalconsoleappender:1.2.0
  File exists: Checksum validated.
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
  File exists: Checksum validated.
Considering library org.spongepowered:mixin:0.8.2
  File exists: Checksum validated.
Considering library com.github.jponge:lzma-java:1.3
  File exists: Checksum validated.
Considering library com.google.code.findbugs:jsr305:3.0.2
  File exists: Checksum validated.
Considering library com.google.code.gson:gson:2.8.0
  File exists: Checksum validated.
Considering library com.google.errorprone:error_prone_annotations:2.1.3
  File exists: Checksum validated.
Considering library com.google.guava:guava:20.0
  File exists: Checksum validated.
Considering library com.google.guava:guava:25.1-jre
  File exists: Checksum validated.
Considering library com.google.j2objc:j2objc-annotations:1.1
  File exists: Checksum validated.
Considering library com.nothome:javaxdelta:2.0.1
  File exists: Checksum validated.
Considering library commons-io:commons-io:2.4
  Downloading library from https://libraries.minecraft.net/commons-io/commons-io/2.4/commons-io-2.4.jar
 

[Teh]

8 hours ago, diesieben07 said:

Post the full log and full error message.

The problem is once the error pops up the tab is basically locked off. You can't click on it or select any of it once the error is there

[Teh]

35 minutes ago, diesieben07 said:

Take a screenshot of it.

So I don't know what happened, but my friend tried running the forge installer again on a different network since he's not at his house right now and it worked. My best guess is there was some sort of blocker or something on the internet but the problem's solved.