java Karaf OSGi配置抛出ResolutionException:无法解析根：缺少需求[root]OSGi。身份
我正在创建一个将在Karaf上运行的Spring Boot应用程序。我试图在Karaf中公开项目配置属性，以便能够使用config:property set更改属性，而无需重新部署应用程序
因此，我已经成功地配置了我的karaf功能，将属性公开给karaf，但我正在尝试创建一个OSGi组件，以便在使用config:property set更改属性时能够获得更新
我在尝试安装时遇到的错误。kar文件如下：
[[A2019-05-19T23:09:32,926 | INFO | pipe-kar:install file:/Users/nikos/development/interlink/thirdParty/osgi-karaf-spring-boot-demo/osgi-spring-boot-demo-features/target/osgi-spring-boot-demo-features-0.0.1-SNAPSHOT.kar | KarServiceImpl | 35 - org.apache.karaf.kar.core - 4.1.3 | Added feature repository 'mvn:com.nemesis/osgi-spring-boot-demo-features/0.0.1-SNAPSHOT/xml/features'
2019-05-19T23:09:32,927 | INFO | pipe-kar:install file:/Users/nikos/development/interlink/thirdParty/osgi-karaf-spring-boot-demo/osgi-spring-boot-demo-features/target/osgi-spring-boot-demo-features-0.0.1-SNAPSHOT.kar | FeaturesServiceImpl | 9 - org.apache.karaf.features.core - 4.1.3 | Adding features: osgi-spring-boot-demo-feature/[0.0.1.SNAPSHOT,0.0.1.SNAPSHOT]
2019-05-19T23:09:32,995 | WARN | pipe-kar:install file:/Users/nikos/development/interlink/thirdParty/osgi-karaf-spring-boot-demo/osgi-spring-boot-demo-features/target/osgi-spring-boot-demo-features-0.0.1-SNAPSHOT.kar | KarServiceImpl | 35 - org.apache.karaf.kar.core - 4.1.3 | Unable to install Kar feature osgi-spring-boot-demo-feature/0.0.1.SNAPSHOT
org.osgi.service.resolver.ResolutionException: Unable to resolve root: missing requirement [root] osgi.identity; osgi.identity=osgi-spring-boot-demo-feature; type=karaf.feature; version="[0.0.1.SNAPSHOT,0.0.1.SNAPSHOT]"; filter:="(&(osgi.identity=osgi-spring-boot-demo-feature)(type=karaf.feature)(version>=0.0.1.SNAPSHOT)(version<=0.0.1.SNAPSHOT))" [caused by: Unable to resolve osgi-spring-boot-demo-feature/0.0.1.SNAPSHOT: missing requirement [osgi-spring-boot-demo-feature/0.0.1.SNAPSHOT] osgi.identity; osgi.identity=com.nemesis.osgi-spring-boot-demo-bundle; type=osgi.bundle; version="[0.0.1.SNAPSHOT,0.0.1.SNAPSHOT]"; resolution:=mandatory [caused by: Unable to resolve com.nemesis.osgi-spring-boot-demo-bundle/0.0.1.SNAPSHOT: missing requirement [com.nemesis.osgi-spring-boot-demo-bundle/0.0.1.SNAPSHOT] osgi.extender; filter:="(&(osgi.extender=osgi.component)(version>=1.3.0)(!(version>=2.0.0)))"]]
at org.apache.felix.resolver.ResolutionError.toException(ResolutionError.java:42) ~[?:?]
at org.apache.felix.resolver.ResolverImpl.doResolve(ResolverImpl.java:391) ~[?:?]
at org.apache.felix.resolver.ResolverImpl.resolve(ResolverImpl.java:377) ~[?:?]
at org.apache.felix.resolver.ResolverImpl.resolve(ResolverImpl.java:349) ~[?:?]
at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:218) ~[?:?]
at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:291) ~[?:?]
at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1248) ~[?:?]
at org.apache.karaf.features.internal.service.FeaturesServiceImpl.lambda$doProvisionInThread$1(FeaturesServiceImpl.java:1147) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
at java.lang.Thread.run(Thread.java:748) [?:?]
这是我的github repo。我正在使用Java8和maven 3.6，org。奥斯基。核心5.0.0，卡拉夫4.1.3
有什么办法可以解决这个问题吗？使用@Component和@Modified从Karaf获取属性修改更新的正确方法是吗
提前谢谢
# 1 楼答案
错误消息表示您缺少一个提供捆绑包要求之一的捆绑包
您可以在这条长长的错误消息的末尾找到缺少的需求：
这意味着您缺少osgi的扩展器。组件模型
那是怎么回事？在类中使用声明性服务注释。maven bundle插件读取它们，并为声明性服务创建xml，以及上述扩展程序的需求
因此，这一要求有助于您在安装包时不错过声明性服务运行时
对于karaf，解决方案是安装一个提供运行时的功能：
# 2 楼答案
出现上述错误是因为未安装从属捆绑包或已安装捆绑包的版本不在范围内
您可以通过karaf终端中的以下命令检查捆绑包是否已安装，以及安装的版本：
其中bundle name是要获取错误的bundle
有时可能只缺少一个捆绑包，但可能未安装该功能，该功能只是一组捆绑包
要检查功能是否已安装，请使用以下命令：
在这里，您可以安装该功能，它应该可以解决这个问题