通过带有离线标志的 Maven 安装 Tycho
Installing Tycho via Maven with offline flag
我想在离线环境中运行 Tycho。因此，我在一台可以上网的电脑上镜像了一个demo repository on GitHub并执行了命令mvn clean install。构建成功，但是当我尝试 运行 mvn -o install 在离线模式下安装所有依赖项时，我收到以下异常：
C:\Users\user\Documents\MVN_Test\itp01>mvn clean -e -o install
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[WARNING] No explicit target runtime environment configuration. Build is platform dependent.
[INFO] Computing target platform for MavenProject: tycho.demo.itp01:tycho.demo.itp01:1.0.0-SNAPSHOT @ C:\Users\user\Documents\MVN_Test\itp01\tycho.demo.itp01\pom.xml
[INFO] Adding repository http://download.eclipse.org/releases/helios
[ERROR] Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios: Repository system is offline and no local cache available for http://download.eclipse.org/releases/helios -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:121)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:302)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.gatherExternalInstallableUnits(TargetPlatformFactoryImpl.java:270)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:176)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:128)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:1)
at org.eclipse.tycho.p2.manager.ReactorRepositoryManagerImpl.computePreliminaryTargetPlatform(ReactorRepositoryManagerImpl.java:84)
at org.eclipse.tycho.p2.resolver.P2DependencyResolver.computePreliminaryTargetPlatform(P2DependencyResolver.java:223)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject(DefaultTychoResolver.java:109)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:95)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:266)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
... 11 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Repository system is offline and no local cache available for http://download.eclipse.org/releases/helios
at org.eclipse.tycho.p2.remote.RemoteRepositoryCacheManager.createCache(RemoteRepositoryCacheManager.java:57)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:298)
... 22 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/InternalErrorException
我找到了以下资料，这些可能是bug：
Demo project which demonstrates offline build failure
The problem is reproducible always with the following steps:
- rm -rf ~/.m2/repository
- unzip demo-project.zip
- cd mvn-demo-parent/releng
- mvn clean install
- Build succeeds
- mvn clean -o clean install
- Build fails because "Repository system is offline and no local cache available for http:// download.eclipse.org/releases/mars"
来自Bug 474885 - Build with -o flag fails with "Failed to resolve target definition" message：
这是 tycho 0.24.0 中的错误并在 Tycho 0.25.0 中修复。
的 tycho 0.25.0
Tycho 0.25.0 is currently in development. To try out the most recent snapshot build of 0.25.0, simply add the following snippet to your (parent) pom.xml or settings.xml, and set the property for the Tycho version (e.g. tycho-version) to 0.25.0-SNAPSHOT.
<pluginRepositories>
<pluginRepository>
<id>tycho-snapshots</id>
<url>https://repo.eclipse.org/content/repositories/tycho-snapshots/</url>
</pluginRepository>
</pluginRepositories>
我想在离线环境中运行 Tycho。因此，我在一台可以上网的电脑上镜像了一个demo repository on GitHub并执行了命令mvn clean install。构建成功，但是当我尝试 运行 mvn -o install 在离线模式下安装所有依赖项时，我收到以下异常：
C:\Users\user\Documents\MVN_Test\itp01>mvn clean -e -o install
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[WARNING] No explicit target runtime environment configuration. Build is platform dependent.
[INFO] Computing target platform for MavenProject: tycho.demo.itp01:tycho.demo.itp01:1.0.0-SNAPSHOT @ C:\Users\user\Documents\MVN_Test\itp01\tycho.demo.itp01\pom.xml
[INFO] Adding repository http://download.eclipse.org/releases/helios
[ERROR] Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios: Repository system is offline and no local cache available for http://download.eclipse.org/releases/helios -> [Help 1]
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:121)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.RuntimeException: Failed to load p2 repository with ID 'helios' from location http://download.eclipse.org/releases/helios
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:302)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.gatherExternalInstallableUnits(TargetPlatformFactoryImpl.java:270)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:176)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:128)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.createTargetPlatform(TargetPlatformFactoryImpl.java:1)
at org.eclipse.tycho.p2.manager.ReactorRepositoryManagerImpl.computePreliminaryTargetPlatform(ReactorRepositoryManagerImpl.java:84)
at org.eclipse.tycho.p2.resolver.P2DependencyResolver.computePreliminaryTargetPlatform(P2DependencyResolver.java:223)
at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject(DefaultTychoResolver.java:109)
at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:95)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:266)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
... 11 more
Caused by: org.eclipse.equinox.p2.core.ProvisionException: Repository system is offline and no local cache available for http://download.eclipse.org/releases/helios
at org.eclipse.tycho.p2.remote.RemoteRepositoryCacheManager.createCache(RemoteRepositoryCacheManager.java:57)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:61)
at org.eclipse.tycho.p2.remote.RemoteMetadataRepositoryManager.loadRepository(RemoteMetadataRepositoryManager.java:53)
at org.eclipse.tycho.p2.target.TargetPlatformFactoryImpl.loadMetadataRepository(TargetPlatformFactoryImpl.java:298)
... 22 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/InternalErrorException
我找到了以下资料，这些可能是bug：
Demo project which demonstrates offline build failure
The problem is reproducible always with the following steps:
- rm -rf ~/.m2/repository
- unzip demo-project.zip
- cd mvn-demo-parent/releng
- mvn clean install
- Build succeeds
- mvn clean -o clean install
- Build fails because "Repository system is offline and no local cache available for http:// download.eclipse.org/releases/mars"
来自Bug 474885 - Build with -o flag fails with "Failed to resolve target definition" message： 这是 tycho 0.24.0 中的错误并在 Tycho 0.25.0 中修复。
的 tycho 0.25.0Tycho 0.25.0 is currently in development. To try out the most recent snapshot build of 0.25.0, simply add the following snippet to your (parent) pom.xml or settings.xml, and set the property for the Tycho version (e.g. tycho-version) to 0.25.0-SNAPSHOT.
<pluginRepositories>
<pluginRepository>
<id>tycho-snapshots</id>
<url>https://repo.eclipse.org/content/repositories/tycho-snapshots/</url>
</pluginRepository>
</pluginRepositories>