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我努力学习服务组件架构（SCA），所以我开始在这个环节上的Apache Tuscany的教程：http://tuscany.apache.org/getting-started-with-tuscany.htmlApache Tuscany的SCA教程有断开的链接
在本教程的开始，笔者提供指向最新版本发行版的链接，并要求从该链接下载托斯卡纳库。下面是他提供的链接：The requested URL /TUSCANY/sca-java-releases.html was not found on this server.
所以，我试图在谷歌为Apache的托斯卡纳SCA-1.3.2搜索来解决这个问题：http://cwiki.apache.org/TUSCANY/sca-java-releases.html
每当我打开这个链接，页面上显示。虽然，我只找到apache-tuscany-sca-1.6.2的库。我从这个链接下载了他们：http://tuscany.apache.org/sca-java-1x-releases.html，我跟着教程。
但是，apache-tuscany-sca-1.6.2库似乎已经丢失。在本教程的第一部分，它说创建目录界面，
package services;
import org.osoa.sca.annotations.Remotable;
@Remotable
public interface Catalog {
Item[] get();
}
在这里，我得到一个错误，在这条线import org.osoa.sca.annotations.Remotable;。该库与我下载的TUSCANY库不存在。
我试图通过搜索包含org.osoa.sca.annotations.Remotable的jar文件来解决问题。我找到了一个，然后将其添加到图书馆。我一遍又一遍地做了类似的事情来获取缺少的jar文件，并将它们添加到托斯卡纳库。但是，当我运行该程序时，出现错误。这些错误指向我添加到托斯卡纳库的jar文件。这里是错误：
Starting ...
يول 12, 2013 7:08:54 م org.apache.tuscany.sca.node.impl.NodeImpl <init>
INFO: Creating node: store.composite
يول 12, 2013 7:08:55 م org.apache.tuscany.sca.node.impl.NodeImpl configureNode
INFO: Loading contribution: file:/C:/Users/student/workspace/store/bin/
Exception in thread "main" org.osoa.sca.ServiceRuntimeException: java.lang.NullPointerException
at org.apache.tuscany.sca.node.impl.NodeImpl.<init>(NodeImpl.java:204)
at org.apache.tuscany.sca.node.impl.NodeFactoryImpl.createSCANodeFromClassLoader(NodeFactoryImpl.java:37)
at org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.init(DefaultSCADomain.java:178)
at org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:100)
at org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:182)
at org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:63)
at launch.Launch.main(Launch.java:8)
Caused by: java.lang.NullPointerException
at org.apache.tuscany.sca.databinding.DefaultDataBindingExtensionPoint.addDataBinding(DefaultDataBindingExtensionPoint.java:85)
at org.apache.tuscany.sca.databinding.DefaultDataBindingExtensionPoint.loadDataBindings(DefaultDataBindingExtensionPoint.java:122)
at org.apache.tuscany.sca.databinding.DefaultDataBindingExtensionPoint.introspectType(DefaultDataBindingExtensionPoint.java:196)
at org.apache.tuscany.sca.core.databinding.processor.DataBindingJavaInterfaceProcessor.processInterface(DataBindingJavaInterfaceProcessor.java:128)
at org.apache.tuscany.sca.core.databinding.processor.DataBindingJavaInterfaceProcessor.visitInterface(DataBindingJavaInterfaceProcessor.java:55)
at org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceIntrospectorImpl.introspectInterface(JavaInterfaceIntrospectorImpl.java:123)
at org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceFactoryImpl.createJavaInterface(JavaInterfaceFactoryImpl.java:58)
at org.apache.tuscany.sca.implementation.java.introspect.impl.ServiceProcessor.createService(ServiceProcessor.java:175)
at org.apache.tuscany.sca.implementation.java.introspect.impl.ServiceProcessor.visitClass(ServiceProcessor.java:75)
at org.apache.tuscany.sca.implementation.java.impl.JavaClassIntrospectorImpl.introspectClass(JavaClassIntrospectorImpl.java:72)
at org.apache.tuscany.sca.implementation.java.impl.JavaImplementationFactoryImpl.createJavaImplementation(JavaImplementationFactoryImpl.java:55)
at org.apache.tuscany.sca.implementation.java.xml.JavaImplementationProcessor.resolve(JavaImplementationProcessor.java:228)
at org.apache.tuscany.sca.implementation.java.xml.JavaImplementationProcessor.resolve(JavaImplementationProcessor.java:74)
at org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint$LazyStAXArtifactProcessor.resolve(DefaultStAXArtifactProcessorExtensionPoint.java:388)
at org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor.resolve(ExtensibleStAXArtifactProcessor.java:183)
at org.apache.tuscany.sca.assembly.xml.BaseAssemblyProcessor.resolveImplementation(BaseAssemblyProcessor.java:340)
at org.apache.tuscany.sca.assembly.xml.CompositeProcessor.resolve(CompositeProcessor.java:1028)
at org.apache.tuscany.sca.assembly.xml.CompositeProcessor.resolve(CompositeProcessor.java:90)
at org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint$LazyStAXArtifactProcessor.resolve(DefaultStAXArtifactProcessorExtensionPoint.java:388)
at org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor.resolve(ExtensibleStAXArtifactProcessor.java:183)
at org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor.resolve(CompositeDocumentProcessor.java:231)
at org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor.resolve(CompositeDocumentProcessor.java:59)
at org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor.resolve(ExtensibleURLArtifactProcessor.java:106)
at org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.processResolvePhase(ContributionServiceImpl.java:625)
at org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.addContribution(ContributionServiceImpl.java:430)
at org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl.contribute(ContributionServiceImpl.java:198)
at org.apache.tuscany.sca.node.impl.NodeImpl.configureNode(NodeImpl.java:524)
at org.apache.tuscany.sca.node.impl.NodeImpl.<init>(NodeImpl.java:200)
... 6 more
看来，我不应该添加缺少的库一个接一个。因此，我需要帮助找到适用于本教程的TUSCANY库的正确集合。谢谢。