mvn vaadin:uppgrade8 error

Hi i am trying to run mvn vaadin:uppgrade8 command on a migrated project from vaadin 7 (ivy) to vaadin 8 (maven).

Basicaly i followed another vaadin user path, copied my sources in a newly created vaadin maven project. I have added dependencies for specific plugins but now have trouble converting vaadin 7 naming to vaadin 8.

This is the stacktrace, how to solve this. I am new to maven to am i missing some basic steps?

[INFO]
Error stacktraces are turned on.
[INFO]
Scanning for projects…
[WARNING]
The project aveor.tech:board:war:1.0-SNAPSHOT uses prerequisites which is only intended for maven-plugin projects but not for non maven-plugin projects. For such purposes you should use the maven-enforcer-plugin. See https://maven.apache.org/enforcer/enforcer-rules/requireMavenVersion.html
[INFO]

[INFO]
--------------------------< aveor.tech:board >--------------------------
[INFO]
Building board 1.0-SNAPSHOT
[INFO]
--------------------------------[ war ]

[INFO]

[INFO]
— vaadin-maven-plugin:8.11.0:upgrade8 (default-cli) @ board —
[INFO]
Scanning for compatibility classes for 8.11.0 version…
[INFO]
Downloading vaadin-compatibility-server 8.11.0 from Maven to null/.m2/repository
[ERROR]
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
[ERROR]
SLF4J: Defaulting to no-operation (NOP) logger implementation
[ERROR]
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[ERROR]
Exception in thread “main” java.lang.RuntimeException: org.eclipse.aether.resolution.DependencyResolutionException: Failed to read artifact descriptor for com.vaadin:vaadin-compatibility-server:jar:8.11.0
[ERROR]
at com.vaadin.framework8.migrate.MavenResolver.resolve(MavenResolver.java:73)
[ERROR]
at com.vaadin.framework8.migrate.VadinJarFinder.download(VadinJarFinder.java:55)
[ERROR]
at com.vaadin.framework8.migrate.VadinJarFinder.lambda$get$1(VadinJarFinder.java:22)
[ERROR]
at java.base/java.util.Optional.orElseGet(Optional.java:369)
[ERROR]
at com.vaadin.framework8.migrate.VadinJarFinder.get(VadinJarFinder.java:22)
[ERROR]
at com.vaadin.framework8.migrate.Migrate.main(Migrate.java:45)
[ERROR]
Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Failed to read artifact descriptor for com.vaadin:vaadin-compatibility-server:jar:8.11.0
[ERROR]
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:387)
[ERROR]
at com.vaadin.framework8.migrate.MavenResolver.resolve(MavenResolver.java:68)
[ERROR]
… 5 more
[ERROR]
Caused by: org.eclipse.aether.collection.DependencyCollectionException: Failed to read artifact descriptor for com.vaadin:vaadin-compatibility-server:jar:8.11.0
[ERROR]
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:208)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:341)
[ERROR]
… 6 more
[ERROR]
Caused by: org.eclipse.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for com.vaadin:vaadin-compatibility-server:jar:8.11.0
[ERROR]
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:282)
[ERROR]
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:198)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:202)
[ERROR]
… 7 more
[ERROR]
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not transfer artifact com.vaadin:vaadin-compatibility-server:pom:8.11.0 from/to central (http://central.maven.org/maven2/): No such host is known (central.maven.org)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
[ERROR]
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:267)
[ERROR]
… 9 more
[ERROR]
Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact com.vaadin:vaadin-compatibility-server:pom:8.11.0 from/to central (http://central.maven.org/maven2/): No such host is known (central.maven.org)
[ERROR]
at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:43)
[ERROR]
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:355)
[ERROR]
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)
[ERROR]
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581)
[ERROR]
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
[ERROR]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
[ERROR]
… 12 more
[ERROR]
Caused by: java.net.UnknownHostException: No such host is known (central.maven.org)
[ERROR]
at java.base/java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
[ERROR]
at java.base/java.net.InetAddress$PlatformNameService.lookupAllHostAddr(InetAddress.java:929)
[ERROR]
at java.base/java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1515)
[ERROR]
at java.base/java.net.InetAddress$NameServiceAddresses.get(InetAddress.java:848)
[ERROR]
at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1505)
[ERROR]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1364)
[ERROR]
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1298)
[ERROR]
at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:44)
[ERROR]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:259)
[ERROR]
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:159)
[ERROR]
at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:304)
[ERROR]
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
[ERROR]
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
[ERROR]
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
[ERROR]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)
[ERROR]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
[ERROR]
at org.apache.http.impl.client.DecompressingHttpClient.execute(DecompressingHttpClient.java:158)
[ERROR]
at org.eclipse.aether.transport.http.HttpTransporter.execute(HttpTransporter.java:318)
[ERROR]
at org.eclipse.aether.transport.http.HttpTransporter.implGet(HttpTransporter.java:274)
[ERROR]
at org.eclipse.aether.spi.connector.transport.AbstractTransporter.get(AbstractTransporter.java:59)
[ERROR]
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:447)
[ERROR]
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:350)
[ERROR]
… 17 more
[ERROR]
Migration to Vaadin 8 failed
org.codehaus.mojo.gwt.shell.JavaCommandException: Command [[
C:\Program Files\AdoptOpenJDK\jdk-11.0.7.10-hotspot\bin\java -Xmx1G com.vaadin.framework8.migrate.Migrate -version=8.11.0
]] failed with status 1
at org.codehaus.mojo.gwt.shell.JavaCommand.execute(JavaCommand.java:330)
at com.vaadin.integration.maven.Vaadin8UpgradeMojo.doExecute(Vaadin8UpgradeMojo.java:85)
at org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo.execute(AbstractGwtShellMojo.java:182)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
[INFO]

[INFO]
BUILD FAILURE
[INFO]

[INFO]
Total time: 12.342 s
[INFO]
Finished at: 2020-06-27T17:21:43+02:00
[INFO]

[ERROR]
Failed to execute goal com.vaadin:vaadin-maven-plugin:8.11.0:upgrade8 (default-cli) on project board: Problem migrating the project: Command [[
[ERROR]
C:\Program Files\AdoptOpenJDK\jdk-11.0.7.10-hotspot\bin\java -Xmx1G com.vaadin.framework8.migrate.Migrate -version=8.11.0
[ERROR]
]] failed with status 1
[ERROR]
→ [Help 1]

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.vaadin:vaadin-maven-plugin:8.11.0:upgrade8 (default-cli) on project board: Problem migrating the project
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:215)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
Caused by: org.apache.maven.plugin.MojoFailureException: Problem migrating the project
at com.vaadin.integration.maven.Vaadin8UpgradeMojo.doExecute(Vaadin8UpgradeMojo.java:89)
at org.codehaus.mojo.gwt.shell.AbstractGwtShellMojo.execute(AbstractGwtShellMojo.java:182)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
… 20 more
Caused by: org.codehaus.mojo.gwt.shell.JavaCommandException: Command [[
C:\Program Files\AdoptOpenJDK\jdk-11.0.7.10-hotspot\bin\java -Xmx1G com.vaadin.framework8.migrate.Migrate -version=8.11.0
]] failed with status 1
at org.codehaus.mojo.gwt.shell.JavaCommand.execute(JavaCommand.java:330)
at com.vaadin.integration.maven.Vaadin8UpgradeMojo.doExecute(Vaadin8UpgradeMojo.java:85)
… 23 more
[ERROR]

[ERROR]
Re-run Maven using the -X switch to enable full debug logging.
[ERROR]

[ERROR]
For more information about the errors and possible solutions, please read the following articles:
[ERROR]
[Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

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