hey i am new to forge and i am trying to make a PvP client for 1.8.9 in forge but i cant build gradle it says this exception

Quote

 

Settings evaluated using settings file 'C:\master\settings.gradle'.
Projects loaded. Root project using build file 'C:\Users\DELL\Desktop\forge client v1\build.gradle'.
Included projects: [root project 'forge client v1']
Evaluating root project 'forge client v1' using build file 'C:\Users\DELL\Desktop\forge client v1\build.gradle'.
Resource missing. [HTTP GET: https://jcenter.bintray.com/net/minecraftforge/gradle/ForgeGradle/2.1-SNAPSHOT/maven-metadata.xml]
Resource missing. [HTTP GET: https://jcenter.bintray.com/net/minecraftforge/gradle/ForgeGradle/2.1-SNAPSHOT/ForgeGradle-2.1-SNAPSHOT.pom]
Resource missing. [HTTP HEAD: https://jcenter.bintray.com/net/minecraftforge/gradle/ForgeGradle/2.1-SNAPSHOT/ForgeGradle-2.1-SNAPSHOT.jar]

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'forge client v1'.
> Could not resolve all dependencies for configuration ':classpath'.
   > Could not resolve net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT.
     Required by:
         :forge client v1:unspecified
      > Could not resolve net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT.
         > Unable to load Maven meta-data from http://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/2.1-SNAPSHOT/maven-metadata.xml.
            > Could not GET 'http://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/2.1-SNAPSHOT/maven-metadata.xml'.
               > peer not authenticated

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.

BUILD FAILED

Total time: 10.408 sec

 

 

plz reply ASAP