創建Tycho產品錯誤：缺少要求

Question

我是新的Tycho。我試圖創建一個使用第谷的產物，但我每次運行它的時候，我遇到了以下錯誤：

Cannot resolve project dependencies: 
[ERROR] Software being installed: RCPplugin.RCPplugin 0.0.1.qualifier 
[ERROR] Missing requirement: RCPplugin.RCPplugin 0.0.1.qualifier requires 'org.eclipse.rcp.feature.group [3.7.2.dist-8R9GFpOFUdy-521934]' but it could not be found 
[ERROR] 
[ERROR] Internal error: java.lang.RuntimeException: "No solution found because the problem is unsatisfiable.": ["Unable to satisfy dependency from RCPplugin.RCPplugin 0.0.1.qualifier to org.eclipse.rcp.feature.group [3.7.2.dist-8R9GFpOFUdy-521934].", "No solution found because the problem is unsatisfiable."] -> [Help 1] 
org.apache.maven.InternalErrorException: Internal error: java.lang.RuntimeException: "No solution found because the problem is unsatisfiable.": ["Unable to satisfy dependency from RCPplugin.RCPplugin 0.0.1.qualifier to org.eclipse.rcp.feature.group [3.7.2.dist-8R9GFpOFUdy-521934].", "No solution found because the problem is unsatisfiable."] 
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:168) 
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) 
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) 
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:616) 
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) 
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) 
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) 
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) 
Caused by: java.lang.RuntimeException: "No solution found because the problem is unsatisfiable.": ["Unable to satisfy dependency from RCPplugin.RCPplugin 0.0.1.qualifier to org.eclipse.rcp.feature.group [3.7.2.dist-8R9GFpOFUdy-521934].", "No solution found because the problem is unsatisfiable."] 
    at org.eclipse.tycho.p2.impl.resolver.AbstractResolutionStrategy.newResolutionException(AbstractResolutionStrategy.java:79) 
    at org.eclipse.tycho.p2.impl.resolver.ProjectorResolutionStrategy.resolve(ProjectorResolutionStrategy.java:83) 
    at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2ResolverImpl.java:118) 
    at org.eclipse.tycho.p2.impl.resolver.P2ResolverImpl.resolveProject(P2ResolverImpl.java:76) 
    at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.doResolvePlatform(P2TargetPlatformResolver.java:445) 
    at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.resolveDependencies(P2TargetPlatformResolver.java:422) 
    at org.eclipse.tycho.core.resolver.DefaultTychoDependencyResolver.resolveProject(DefaultTychoDependencyResolver.java:98) 
    at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:61) 
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:274) 
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) 
    ... 11 more 

有人可以幫我嗎？

Answer 1

您是否告訴Tycho在哪裏尋找依賴關係？與Maven不同，Tycho沒有一個默認的存儲庫來查找依賴關係。您需要明確地配置這個搜索範圍 - 所謂的目標平臺 - 例如，與

<repository> 
    <id>eclipse-indigo</id> 
    <layout>p2</layout> 
    <url>http://download.eclipse.org/releases/indigo</url> 
</repository> 

更多選項來配置目標平臺可以找到here in the documentation。