Rust 错误[E0277]：特性绑定'std:：result:：result<；\，盒子<；archivebzip2错误>>；：std:：error:：error`不满足

当我使用此

映射时

语句：

error[E0277]: the trait bound `std::result::Result<_, Box<ArchiveBzip2Error>>: std::error::Error` is not satisfied
  --> src/archive/bzip2file.rs:58:101
   |
58 | ...                   .file_name().ok_or(Err(Box::new(ArchiveBzip2Error::InvalidArchive)))?
   |                                                                                           ^ the trait `std::error::Error` is not implemented for `std::result::Result<_, Box<ArchiveBzip2Error>>`
   |
   = note: required because of the requirements on the impl of `From<std::result::Result<_, Box<ArchiveBzip2Error>>>` for `Box<dyn std::error::Error>`
   = note: required by `from`

.map（| mut entry |->结果{
Ok（框：：new（entry.path（））或| else（| e | Err（e））？
.file_name（）.ok_或（Err（Box:：new（ArchiveBzip2Error:：InvalidArchive））？
.to_str（）？
))
})

我收到这个错误：

error[E0277]: the trait bound `std::result::Result<_, Box<ArchiveBzip2Error>>: std::error::Error` is not satisfied
  --> src/archive/bzip2file.rs:58:101
   |
58 | ...                   .file_name().ok_or(Err(Box::new(ArchiveBzip2Error::InvalidArchive)))?
   |                                                                                           ^ the trait `std::error::Error` is not implemented for `std::result::Result<_, Box<ArchiveBzip2Error>>`
   |
   = note: required because of the requirements on the impl of `From<std::result::Result<_, Box<ArchiveBzip2Error>>>` for `Box<dyn std::error::Error>`
   = note: required by `from`

这是IDE的完整上下文，带有类型提示： 的签名是

考虑

.file_name().ok_or(Box::new(ArchiveBzip2Error::InvalidArchive))?

---

哎呀，这显然是个错误。谢谢

.file_name().ok_or(Box::new(ArchiveBzip2Error::InvalidArchive))?