title: Why do I get a 403 error when trying to start Grails 3.1.12?
body: <p>I'm trying to run Grails 3.1.12 on Mac OSX (10.11.5).</p>
  
  <p><code>grails -version</code> gives me the following output:</p>
  
  <pre><code>| Grails Version: 3.1.12
  | Groovy Version: 2.4.7
  | JVM Version: 1.8.0_71
  </code></pre>
  
  <p>And then if I run <code>grails --stacktrace --verbose</code> I get this:</p>
  
  <pre><code>| Error Error occurred running Grails CLI: Forbidden (403)
  org.apache.http.client.HttpResponseException: Forbidden (403)
  at org.eclipse.aether.transport.http.HttpTransporter.handleStatus(HttpTransporter.java:466)
  at org.eclipse.aether.transport.http.HttpTransporter.execute(HttpTransporter.java:291)
  at org.eclipse.aether.transport.http.HttpTransporter.implGet(HttpTransporter.java:243)
  at org.eclipse.aether.spi.connector.transport.AbstractTransporter.get(AbstractTransporter.java:59)
  at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:447)
  at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:350)
  at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)
  at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581)
  at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249)
  at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
  at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
  at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
  at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
  at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:320)
  at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:217)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.resolveCachedArtifactDescriptor(DefaultDependencyCollector.java:535)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.getArtifactDescriptorResult(DefaultDependencyCollector.java:519)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:409)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.processDependency(DefaultDependencyCollector.java:363)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:351)
  at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:254)
  at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:341)
  at org.springframework.boot.cli.compiler.grape.AetherGrapeEngine.resolve(AetherGrapeEngine.java:302)
  at org.springframework.boot.cli.compiler.grape.AetherGrapeEngine.resolve(AetherGrapeEngine.java:284)
  at org.springframework.boot.cli.compiler.grape.AetherGrapeEngine.resolve(AetherGrapeEngine.java:276)
  at org.grails.cli.boot.GrailsDependencyVersions.&lt;init&gt;(GrailsDependencyVersions.groovy:53)
  at org.grails.cli.boot.GrailsDependencyVersions.&lt;init&gt;(GrailsDependencyVersions.groovy:49)
  at org.grails.cli.profile.repository.MavenProfileRepository.&lt;init&gt;(MavenProfileRepository.groovy:56)
  at org.grails.cli.GrailsCli.createMavenProfileRepository(GrailsCli.groovy:329)
  at org.grails.cli.GrailsCli.execute(GrailsCli.groovy:238)
  at org.grails.cli.GrailsCli.main(GrailsCli.groovy:163)
  </code></pre>
  
  <p>I can't even create a project or simply start Grails in interactive mode. I don't have any <code>GRAILS_OPTS</code> set. What am I doing wrong here?</p>
  
  <p>Thanks a lot for any help!</p>