无法重新安装Eclipse IDE，安装时提示写入旧用户路径.p2仓库失败怎么办

报错信息 #

[2021-09-24 13:26:34] ERROR: org.eclipse.equinox.p2.engine code=4 An error occurred while collecting items to be installed
  at org.eclipse.oomph.util.OomphPlugin.coreException(OomphPlugin.java:291)
  at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl$3.commit(ProfileTransactionImpl.java:553)
  at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl.commit(ProfileTransactionImpl.java:345)
  at org.eclipse.oomph.setup.p2.impl.P2TaskImpl.perform(P2TaskImpl.java:904)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.doPerformNeededSetupTasks(SetupTaskPerformer.java:3851)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.performNeededSetupTasks(SetupTaskPerformer.java:3779)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.performTriggeredSetupTasks(SetupTaskPerformer.java:3760)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.perform(SetupTaskPerformer.java:3638)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage.installPerform(SimpleVariablePage.java:1343)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage.access$33(SimpleVariablePage.java:1211)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage$20.run(SimpleVariablePage.java:1156)
ERROR: org.eclipse.equinox.p2.engine code=0 session context was:(profile=C__Users_Owner_.eclipse_eclipse, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
ERROR: org.eclipse.equinox.p2.artifact.repository code=1003 Unable to write to repository: file:/C:/Users/jdm23/.p2/pool.
java.io.IOException: Failed to create directory C:\Users\jdm23\.p2\pool\plugins.
    at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getOutputStream(SimpleArtifactRepository.java:1039)
    at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transferSingle(MirrorRequest.java:289)
    at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.transfer(MirrorRequest.java:234)
    at org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.perform(MirrorRequest.java:156)
    at org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtifactRepository.getArtifact(SimpleArtifactRepository.java:770)
    at org.eclipse.equinox.internal.p2.artifact.repository.simple.DownloadJob.run(DownloadJob.java:64)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

重复报错的核心原因是Eclipse安装组件残留了旧电脑的用户路径配置，p2插件仓库指向了不存在的旧用户目录，无法创建写入目录

解决步骤 #

• 清除所有残留配置
  依次删除以下目录（如果存在）：
  • 当前用户目录下的.eclipse文件夹
  • 当前用户目录下的.p2文件夹
  • 之前指定的Eclipse安装目标文件夹
  • C:\Users\你的当前用户名\AppData\Roaming\eclipse文件夹
  • C:\Users\你的当前用户名\AppData\Local\eclipse文件夹
• 调整安装器启动参数（可选）
  右键点击Eclipse安装器exe创建快捷方式，打开快捷方式属性，在「目标」输入框内容末尾添加空格后输入：-vmargs -Duser.home=C:\Users\你的实际当前用户名，替换为新电脑当前用户目录的实际路径后，通过该快捷方式启动安装器。
• 手动指定Bundle Pool路径
  安装时切换到高级模式，找到Bundle Pool设置，选择创建新的共享池，路径设置为当前用户目录下的.p2\pool，或者其他有读写权限的本地路径，不要使用安装器自动读取的旧路径。
• 免安装方案（绕过安装器问题）
  直接下载Eclipse官方免安装压缩包，解压到无权限限制的目录后，直接运行目录内的eclipse.exe即可使用，完全跳过Oomph安装器的配置流程，不会触发旧配置残留问题。

内容的提问来源于stack exchange，提问作者DualBall