build error while adding maven dependency

[ishaileshmishra]

Describe the bug
Got maven dependency build error !!

line xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">

To Reproduce
Steps to reproduce the behavior:

1. Go to 'pom.xml'
2. Add dependency under section dependencies

<dependency>
	<groupId>com.graphql-java-kickstart</groupId>
	<artifactId>graphql-webclient-spring-boot-starter</artifactId>
	<version>1.0.0</version>
</dependency>

3. Try to update maven to build
4. See error: xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">

Failure to transfer io.projectreactor:reactor-core:jar:3.4.4 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact io.projectreactor:reactor-core:jar:3.4.4 from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.

org.eclipse.aether.transfer.ArtifactTransferException: Failure to transfer io.projectreactor:reactor-core:jar:3.4.4 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact io.projectreactor:reactor-core:jar:3.4.4 from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:225)
	at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:193)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:559)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:483)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:401)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:229)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:340)
	at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:202)
	at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:227)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:200)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:124)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.readMavenProject(MavenImpl.java:630)
	at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:65)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refreshPhase2(ProjectRegistryManager.java:550)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.lambda$3(ProjectRegistryManager.java:514)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:179)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:153)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:512)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:364)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:315)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.getProjectFacade(MavenBuilder.java:151)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.lambda$0(MavenBuilder.java:89)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:179)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:153)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:101)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:88)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:197)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:846)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:229)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:277)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:330)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:333)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:385)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:406)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:154)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:244)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

[oliemansm]

That's strange because if you search in Maven Central you see that repository should be available: https://search.maven.org/artifact/io.projectreactor/reactor-core/3.4.5/jar

You can see the previous patch version (3.4.4) that's being complained about in your stack trace is there too.

You could try adding the Spring milestone repo, but that really shouldn't be necessary seeing it's already in Maven Central.