Anypoint Studio connector download error

The following exceptions were encountered while resolving dependency org.mule.connectors:mule-sockets-connector:1.1.2: org.mule.maven.client.api.BundleDependenciesResolutionException: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.mule.connectors:mule-sockets-connector:jar:mule-plugin:1.1.2
	at org.mule.maven.client.internal.AetherMavenClient.resolveBundleDescriptor(AetherMavenClient.java:287)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.mule.maven.client.internal.AetherMavenClient.resolvePluginBundleDescriptorsDependencies(AetherMavenClient.java:299)
	at org.mule.tooling.core.m2.internal.MuleMavenClientResolver.resolvePluginDependencies(MuleMavenClientResolver.java:80)
	at org.mule.tooling.core.module.internal.runner.DownloadTask.doRun(DownloadTask.java:76)
	at org.mule.tooling.core.module.internal.runner.Task.run(Task.java:65)
	at org.mule.tooling.core.module.internal.runner.DownloadTask.run(DownloadTask.java:1)
	at org.mule.tooling.core.module.internal.runner.ArtifactResolvingRunner$ArtifactJob.run(ArtifactResolvingRunner.java:212)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.mule.connectors:mule-sockets-connector:jar:mule-plugin:1.1.2
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:294)
	at org.mule.maven.client.internal.AetherMavenClient.resolveBundleDescriptor(AetherMavenClient.java:283)
	... 15 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.mule.connectors:mule-sockets-connector:jar:mule-plugin:1.1.2
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:434)
	... 19 more