Forge forge-1.8.9-11.15.1.1722-installer not working on ver 1.8.9

[DaisyLOLfriend]

Here is the log.

Considering library net.minecraftforge:forge:1.8.9-11.15.1.1722: Not Downloading
Considering library io.netty:netty-all:4.0.23.Final: Not Downloading
Considering library net.minecraft:launchwrapper:1.12: Not Downloading
Considering library org.ow2.asm:asm-all:5.0.3: Not Downloading
Considering library jline:jline:2.13: Not Downloading
Considering library com.typesafe.akka:akka-actor_2.11:2.3.3
Considering library com.typesafe:config:1.2.1
Considering library org.scala-lang:scala-actors-migration_2.11:1.1.0
Considering library org.scala-lang:scala-compiler:2.11.1
Considering library org.scala-lang.plugins:scala-continuations-library_2.11:1.0.2
Considering library org.scala-lang.plugins:scala-continuations-plugin_2.11.1:1.0.2
Considering library org.scala-lang:scala-library:2.11.1
Considering library org.scala-lang:scala-parser-combinators_2.11:1.0.1
Considering library org.scala-lang:scala-reflect:2.11.1
Considering library org.scala-lang:scala-swing_2.11:1.0.1
Considering library org.scala-lang:scala-xml_2.11:1.0.2
Considering library lzma:lzma:0.0.1: Not Downloading
Considering library net.sf.jopt-simple:jopt-simple:4.6: Not Downloading
Considering library java3d:vecmath:1.5.2
Considering library net.sf.trove4j:trove4j:3.0.3
 

[sciwhiz12]

1.8 is not supported on this forum.

Please update to a modern version of Minecraft to receive support.

[DaisyLOLfriend]

unfortunately the mod we want requires 1.8.9.