从上面的评论中获取 Nisanth Reddy 的建议并搜索 SwiftEntryPlugin: NSObject 我的搜索范围缩小到 2 个文件.这些文件是 ./my-app/ios/.symlinks/plugins/entry/ios/Classes/SwiftEntryPlugin.swift 和 ./my-app/ios/.symlinks/plugins/entry/ios/Classes/SwiftAnimateInPlugin.swift.经过一些试验和错误，似乎两个文件都是必需的(我认为我正在使用的特定 Flutter 包需要冗余的文件)，但它们中的代码完全相同，因此我从其中一个中删除了所有代码文件，但将空文件留在目录中，问题已解决.

Taking Nisanth Reddy's advice from the comment above and grepping for SwiftEntryPlugin: NSObject my search was narrowed down to 2 files. The files were ./my-app/ios/.symlinks/plugins/entry/ios/Classes/SwiftEntryPlugin.swift and ./my-app/ios/.symlinks/plugins/entry/ios/Classes/SwiftAnimateInPlugin.swift. After some trial and error, it seems like both files are required (the redundant one being required by a particular Flutter package I'm using, I think) but both had the exact same code in them so I removed all the code from one of the files but left the empty file sitting there in the directory and the problem was resolved.