Windows fail

[lucasjinreal]

untime/dart_vm_initializer.cc(41)] Unhandled Exception: FileSystemException: Exists failed, path = 'C:\Users\xx\AppData\Local\Temp\https://db.xx.cn/uploads/users/avatar/usrZK8kZTzEHC.png' (OS Error: 文件名、目录名或卷标语法不正确。

, errno = 123) #0 _checkForErrorResponse (dart:io/common.dart:55:9) #1 _Directory.exists. (dart:io/directory_impl.dart:84:7) #2 _Directory.create. (dart:io/directory_impl.dart:101:28) #3 ForwardingDirectory.create (package:file/src/forwarding/forwarding_directory.dart:16:12) #4 IOFileSystem.createDirectory (package:flutter_cache_manager/src/storage/file_system/file_system_io.dart:19:5)

any idea?