Hi, I'm new to your forum and I have a problem with your Forge version installer: forge-1.12.2-14.23.4.2750-universal.jar. Indeed, I am under Mac OS X and when I run, the error message below is displayed:

- Can not launch Java JAR file "forge-1.12.2-14.23.4.2750-universal.jar". Check Console for possible error messages

So I go to Console and I notice the error that seems to be: (The logs)

 

Spoiler

Considering library net.minecraftforge: forge: 1.12.2-14.23.4.2729: Not Downloading {Wrong Side}
Considering net.minecraft library: launchwrapper: 1.12: Not Downloading {Wrong Side}
Considering library org.ow2.asm: asm-all: 5.2
Considering library org.jline: 3.5.1: Not Downloading {Wrong Side}
Considering net.java.dev.jna library: jna: 4.4.0: Not Downloading {Wrong Side}
Considering library com.typesafe.akka: akka-actor_2.11: 2.3.3
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / com / typesafe / akka / akka-actor_2.11 / 2.3.3 / akka-actor_2.11-2.3.3.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library com.typesafe: config: 1.2.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / com / typesafe / config / 1.2.1 / config-1.2.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering the library org.scala-lang: scala-actors-migration_2.11: 1.1.0
"/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-actors-migration_2.11 / 1.1.0 / scala-actors-migration_2.11-1.1.0.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-compiler: 2.11.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-compiler / 2.11.1 / scala-compiler-2.11.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering the library org.scala-lang.plugins: scala-continuations-library_2.11: 1.0.2
"/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / plugins / scala-continuations-library_2.11 / 1.0.2 / scala-continuations-library_2.11-1.0.2.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering the library org.scala-lang.plugins: scala-continuations-plugin_2.11.1: 1.0.2
"/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / plugins / scala-continuations-plugin_2.11.1 / 1.0.2 / scala-continuations-plugin_2.11.1-1.0.2.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-library: 2.11.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-library / 2.11.1 / scala-library-2.11.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-parser-combinators_2.11: 1.0.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-parser-combinators_2.11 / 1.0.1 / scala-parser-combinators_2.11-1.0.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-reflect: 2.11.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-reflect / 2.11.1 / scala-reflect-2.11.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-swing_2.11: 1.0.1
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-swing_2.11 / 1.0.1 / scala-swing_2.11-1.0.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering library org.scala-lang: scala-xml_2.11: 1.0.2
Checking "/ Users / Gabrielle / Library / Application Support / minecraft / libraries / org / scala-lang / scala-xml_2.11 / 1.0.2 / scala-xml_2.11-1.0.2.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
Considering lzma library: lzma: 0.0.1: Not Downloading {Wrong Side}
Considering net.sf.jopt-simple library: jopt-simple: 5.0.3: Not Downloading {Wrong Side}
Considering library java3d: vecmath: 1.5.2
Considering library net.sf.trove4j: trove4j: 3.0.3
Considering library org.apache.maven: maven-artifact: 3.5.3

Someone would know where it came from? I have tried several times before. I already have Forge installed on my Mac under the version: 1.12.2-forge1.12.2-14.23.3.2669. My Minecraft only has one mod: CustomNPC.

Excuse me for my expressions but I am French and I go through an online translation site to talk to you. Thank you very much and well,

Nonovian.

That is not the log of 2750. Delete all related files, and try running again to get a new log.

You can also run it from the console to get more logs.