Eclipse可插拔功能

编程问答 2022-08-16

问题描述

我已经开发了一个RCP应用程序，并由Tycho进行构建，并且具有下面的结构，

[！[在此处输入图片描述] [1]] [1]

突出显示的功能是我已实现的自定义功能。 作为我的自定义功能[即功能 1.0.2.202008071744 ]位于 RCP产品下，并且当我尝试使用功能2.0.2安装/更新功能时，我遇到错误了

  "Feature" is already installed,so an update will be performed instead.
Cannot complete the install because of a conflicting dependency.
  Software being installed: Feature 2.0.2.202008071746 (com.example.p2.feature.feature.group 2.0.2.202008071746)
  Software currently installed: RCP Product 1.0.0.202008071744 (RCP Product 1.0.0.202008071744)
  Only one of the following can be installed at once: 
    Core 1.0.1.202008071744 (com.example.p2.core 1.0.1.202008071744)
    Core 1.0.1.202008071746 (com.example.p2.core 1.0.1.202008071746)
  Cannot satisfy dependency:
    From: RCP Product 1.0.0.202008071744 (RCP Product 1.0.0.202008071744)
    To: com.example.p2.feature.feature.group [1.0.2.202008071744]
  Cannot satisfy dependency:
    From: Feature 1.0.2.202008071744 (com.example.p2.feature.feature.group 1.0.2.202008071744)
    To: com.example.p2.core [1.0.1.202008071744]
  Cannot satisfy dependency:
    From: Feature 2.0.2.202008071746 (com.example.p2.feature.feature.group 2.0.2.202008071746)
    To: com.example.p2.core [1.0.1.202008071746] ```

Also when I tried to install new feature[Name - Command Version 1.0.2] it installed successfully. Once it get installed I checked it on **installation details window** its entry was not coming under **RCP -Product** and when I tried to update it,Update was successful.  Please refer below image 

[![enter image description here][2]][2]

Can someone help me on below points,1) how to perform update on existing feature/plugin wheter its is externally installed or in-built[i.e bundled with RCP product]. 
2) Is there any way by which I can include plugins which are present on some update site/locally while building it through tycho. and later as and when update is available we can perform update on it.


  [1]: https://i.stack.imgur.com/MHjPg.png
  [2]: https://i.stack.imgur.com/8MXhh.png

解决方法

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eclipseeclipse-rcp