Describe the bug
When importing a file that does not exist, using the quick fix "create file" did not automatically create the file, and there was no abnormal prompt

To Reproduce
Steps to reproduce the behavior:
1.Introduce non-existent files in dart code
2.Use "quick fix"
3.Use "create file"

Expected behavior
Let "create file" successfully create this file

Screenshots

Versions (please complete the following information):

• VS Code version:1.53.2
• Dart extension version:dart 3.19.2 flutter 3.19.0
• Dart/Flutter SDK version:dart 2.10 flutter 1.22.6