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

When I try to compile my Minecraft mod or even try to 'Gradlew SetupDecompWorkspace' this error happens. I don't know what it's causing, it started yesterday when I was trying to compile the mod to test compatibility with others, I'm new to the forge and modding. 

* What went wrong:
A problem occurred configuring root project 'Batman Mod'.
> Could not resolve all dependencies for configuration ':classpath'.
   > Could not resolve org.eclipse.equinox:common:[3.2.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:jobs:3.5.300-v20130429-1813
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.equinox:preferences:3.5.100-v20130422-1538
      > Failed to list versions for org.eclipse.equinox:common.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:preferences:[3.2.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:preferences.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:registry:[3.2.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:contenttype:3.4.200-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:registry.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.core.runtime:compatibility:[3.1.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914
      > Failed to list versions for org.eclipse.core.runtime:compatibility.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/runtime/compatibility/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/runtime/compatibility/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.core:expressions:[3.1.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914
      > Failed to list versions for org.eclipse.core:expressions.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/expressions/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/expressions/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.core:filesystem:[1.0.0,2.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:resources:3.2.1-R32x_v20060914
      > Failed to list versions for org.eclipse.core:filesystem.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/filesystem/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/filesystem/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse:osgi:[3.7.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse:osgi.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/osgi/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/osgi/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:common:[3.6.100,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:common.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/common/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.core:jobs:[3.2.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.core:jobs.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/jobs/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/jobs/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:registry:[3.4.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:registry.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/registry/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:preferences:[3.4.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:preferences.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/preferences/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.core:contenttype:[3.3.0,4.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.core:contenttype.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/core/contenttype/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/core/contenttype/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
   > Could not resolve org.eclipse.equinox:app:[1.0.0,2.0.0).
     Required by:
         :Batman Mod:unspecified > net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT > net.minecraftforge.srg2source:Srg2Source:3.2-SNAPSHOT > org.eclipse.core:runtime:3.9.0-v20130326-1255
      > Failed to list versions for org.eclipse.equinox:app.
         > Unable to load Maven meta-data from http://repo1.maven.org/maven2/org/eclipse/equinox/app/maven-metadata.xml.
            > Could not GET 'http://repo1.maven.org/maven2/org/eclipse/equinox/app/maven-metadata.xml'. Received status code 501 from server: HTTPS Required

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

BUILD FAILED

Total time: 22.641 secs

Quote

OBS: my mod is called Batman Mod, and it's 1.7.10