Today I was trying to make a fresh start and I had this error.

 

C:\forge>gradlew setupDevWorkspace --info

Starting Build

Settings evaluated using empty settings script.

Projects loaded. Root project using build file 'C:\forge\build.gradle'.

Included projects: [root project 'forge']

Evaluating root project 'forge' using build file 'C:\forge\build.gradle'.

Resource missing. [HTTP GET: http://repo1.maven.org/maven2/com/mojang/authlib/1.5.16/authlib-1.5.16.pom]

Resource missing. [HTTP HEAD: http://repo1.maven.org/maven2/com/mojang/authlib/1.5.16/authlib-1.5.16.jar]

Resource missing. [HTTP GET: http://files.minecraftforge.net/maven/com/mojang/authlib/1.5.16/authlib-1.5.16.pom]

Resource missing. [HTTP HEAD: http://files.minecraftforge.net/maven/com/mojang/authlib/1.5.16/authlib-1.5.16.jar]

Resource missing. [HTTP GET: https://oss.sonatype.org/content/repositories/snapshots/com/mojang/authlib/1.5.16/authlib-1.5.16.pom]

Resource missing. [HTTP HEAD: https://oss.sonatype.org/content/repositories/snapshots/com/mojang/authlib/1.5.16/authlib-1.5.16.jar]

 

FAILURE: Build failed with an exception.

 

* What went wrong:

A problem occurred configuring root project 'forge'.

> Could not resolve all dependencies for configuration ':classpath'.

  > Could not find com.mojang:authlib:1.5.16.

    Required by:

        :forge:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT

 

 

* Try:

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

 

BUILD FAILED

 

Total time: 6.586 secs

 

 

 

I had the same also with gradlew build.

A dupe of my post (almost exactly).

 

#justsayin

 

I've modified my post subject to include "Could not find com.mojang:authlib:1.5.16" to (hopefully) cut down on further dupes.

Yes, I see that we create the same topic at the same time.

I got the same error 

 

EDIT

My error when I use gradlew setupDecompWorkspace --refresh-dependencies --stacktrace: http://pastebin.com/ySh9Xs92