如何解决Eclipse中向GitHub提交时添加文件到索引报错问题？

核心问题分析 #

从错误日志可定位根本原因：

org.eclipse.jgit.errors.LockFailedException: Cannot lock C:\Users\motah\.git\index. Ensure that no other process has an open file handle on the lock file C:\Users\motah\.git\index.lock, then you may delete the lock file and retry.

这是Git索引锁文件被占用或残留导致的，与项目本身无关，因此删除重建项目无法解决问题。

解决步骤 #

• 关闭所有可能访问该Git仓库的程序：包括Eclipse、Git Bash、GitHub Desktop、VS Code等任何操作Git的工具
• 手动删除锁文件：找到路径C:\Users\motah\.git\index.lock，直接删除该文件（若找不到，先开启文件管理器「显示隐藏文件」选项）
• 重启Eclipse，重新执行「添加到索引」操作
• 若问题依旧，检查.git文件夹权限：确保当前Windows用户拥有该文件夹的读写权限
• 备选方案：用Git命令行完成添加操作
  1. 打开Git Bash，进入项目根目录
  2. 执行命令 git add .
  3. 返回Eclipse，右键项目 → Team → 刷新，即可看到索引已更新

完整错误日志 #

!ENTRY org.eclipse.egit.ui 4 0 2023-01-25 20:38:42.622
!MESSAGE Failed to add resource to index
!STACK 1
org.eclipse.core.runtime.CoreException: Failed to add resource to index
    at org.eclipse.egit.core.op.AddToIndexOperation.execute(AddToIndexOperation.java:78)
    at org.eclipse.egit.ui.internal.actions.AddToIndexActionHandler$1.run(AddToIndexActionHandler.java:59)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Exception caught during execution of add command
    at org.eclipse.jgit.api.AddCommand.call(AddCommand.java:225)
    at org.eclipse.egit.core.op.AddToIndexOperation.execute(AddToIndexOperation.java:74)
    ... 2 more
Caused by: org.eclipse.jgit.errors.LockFailedException: Cannot lock C:\Users\motah\.git\index. Ensure that no other process has an open file handle on the lock file C:\Users\motah\.git\index.lock, then you may delete the lock file and retry.
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:221)
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:292)
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:258)
    at org.eclipse.jgit.lib.Repository.lockDirCache(Repository.java:1285)
    at org.eclipse.egit.core.RepositoryHandle.lockDirCache(RepositoryHandle.java:319)
    at org.eclipse.jgit.api.AddCommand.call(AddCommand.java:122)
    ... 3 more
!SUBENTRY 1 org.eclipse.egit.core 4 0 2023-01-25 20:38:42.622
!MESSAGE Failed to add resource to index
!STACK 0
org.eclipse.jgit.api.errors.JGitInternalException: Exception caught during execution of add command
    at org.eclipse.jgit.api.AddCommand.call(AddCommand.java:225)
    at org.eclipse.egit.core.op.AddToIndexOperation.execute(AddToIndexOperation.java:74)
    at org.eclipse.egit.ui.internal.actions.AddToIndexActionHandler$1.run(AddToIndexActionHandler.java:59)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.eclipse.jgit.errors.LockFailedException: Cannot lock C:\Users\motah\.git\index. Ensure that no other process has an open file handle on the lock file C:\Users\motah\.git\index.lock, then you may delete the lock file and retry.
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:221)
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:292)
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:258)
    at org.eclipse.jgit.lib.Repository.lockDirCache(Repository.java:1285)
    at org.eclipse.egit.core.RepositoryHandle.lockDirCache(RepositoryHandle.java:319)
    at org.eclipse.jgit.api.AddCommand.call(AddCommand.java:122)
    ... 3 more

内容的提问来源于stack exchange，提问作者Moti