无法解析根：缺少要求 [root] osgi.identity答案

【问题标题】：Unable to resolve root: missing requirement [root] osgi.identity无法解析根：缺少要求 [root] osgi.identity
【发布时间】：2021-01-11 11:08:21
【问题描述】：

我正在努力在 Karaf 上运行 Java 项目。

Error executing command: Unable to resolve root: missing requirement [root] osgi.identity; 
osgi.identity=karcin-insight; 
type=karaf.feature; 
version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]"; 
filter:="(&(osgi.identity=karcin-insight)(type=karaf.feature)(version>=1.0.0.SNAPSHOT)(version<=1.0.0.SNAPSHOT))" [caused by: Unable to resolve karcin-insight/1.0.0.SNAPSHOT: missing requirement [karcin-insight/1.0.0.SNAPSHOT] osgi.identity; 
osgi.identity=karcin-insight-bundles; 
type=karaf.feature [caused by: Unable to resolve karcin-insight-bundles/1.0.0.SNAPSHOT: missing requirement [karcin-insight-bundles/1.0.0.SNAPSHOT] osgi.identity; 
osgi.identity=karcin-insight-rest; type=osgi.bundle; version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]"; 
resolution:=mandatory [caused by: Unable to resolve karcin-insight-rest/1.0.0.SNAPSHOT: missing requirement [karcin-insight-rest/1.0.0.SNAPSHOT] osgi.wiring.package; 
filter:="(osgi.wiring.package=tr.com.karcin.license)"]]]

我该如何解决？

【问题讨论】：

标签： java apache-karaf

【解决方案1】：

我同意这些错误消息并不那么容易阅读。 [...] 括号太多。但只需稍加练习，就可以（记住）将其重新格式化为：

Unable to resolve root:
  missing requirement [root]
   - osgi.identity;
   - osgi.identity=karcin-insight;
   - type=karaf.feature; 
   - version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]";
   - filter:="(&(osgi.identity=karcin-insight)(type=karaf.feature)(version>=1.0.0.SNAPSHOT)(version<=1.0.0.SNAPSHOT))"
  [caused by:
    Unable to resolve karcin-insight/1.0.0.SNAPSHOT:
      missing requirement [karcin-insight/1.0.0.SNAPSHOT]
       - osgi.identity; 
       - osgi.identity=karcin-insight-bundles; 
       - type=karaf.feature
    [caused by:
      Unable to resolve karcin-insight-bundles/1.0.0.SNAPSHOT:
        missing requirement [karcin-insight-bundles/1.0.0.SNAPSHOT]
         - osgi.identity; 
         - osgi.identity=karcin-insight-rest;
         - type=osgi.bundle;
         - version="[1.0.0.SNAPSHOT,1.0.0.SNAPSHOT]"; 
         - resolution:=mandatory
      [caused by:
        Unable to resolve karcin-insight-rest/1.0.0.SNAPSHOT:
          missing requirement [karcin-insight-rest/1.0.0.SNAPSHOT]
           - osgi.wiring.package; 
           - filter:="(osgi.wiring.package=tr.com.karcin.license)"
      ]
    ]
  ]

所以你有一个链的解决问题：

root 功能
karcin-insight/1.0.0.SNAPSHOT 功能
karcin-insight-bundles/1.0.0.SNAPSHOT 功能
karcin-insight-rest/1.0.0.SNAPSHOT 捆绑包（因为 osgi.wiring.package 命名空间）

所以缺少的是karcin-insight-rest 包有Import-Package: tr.com.karcin.license，但您没有安装任何在Export-Package 中具有相同包的包。

【讨论】：