Broken VSCode and Cursor.ai autocomplete

[karatekid430]

For every object, if I type ".", it gives me these same options:

I changed to pre-release extensions for Dart and Flutter. I cleaned the project and re-did it. I even upgraded to the latest Flutter version, 3.27.2.

[karatekid430]

When I type "." anywhere, it says that the whole file is dead code. That might be why.

[dart-github-bot]

Summary: The user reports broken autocomplete functionality in VSCode and Cursor.ai when working with Dart. The autocomplete consistently provides the same, incorrect options regardless of the object. They've already tried cleaning the project, updating to the latest Flutter version (3.27.2), and using pre-release extensions.

Thank you for reporting this issue! To help us investigate, could you please provide the following information:

• The output of dart info
• Your operating system (Windows, macOS, or Linux)
• Your IDE version (VSCode version and Cursor.ai version)
• A minimal reproducible example demonstrating the broken autocomplete behavior. This would ideally be a small Dart project that exhibits the problem.
• The versions of the Dart and Flutter extensions you are using.

This additional information will help us diagnose the problem more effectively. If this issue is related to Flutter or VSCode extensions, please consider filing the issue in the appropriate repository.

[karatekid430]

If providing this information as part of reporting a bug, please review the information
below to ensure it only contains things you're comfortable posting publicly.

General info

• Dart 3.6.1 (stable) (Tue Jan 7 09:50:00 2025 -0800) on "macos_arm64"
• on macos / Version 15.2 (Build 24C101)
• locale is es-419

Project info

• sdk constraint: '>=3.2.3 <4.0.0'
• dependencies: cached_network_image, crypto, cupertino_icons, exif, flutter, flutter_cache_manager, flutter_compass, flutter_downloader, flutter_hooks, flutter_image_compress, flutter_localizations, flutter_map, flutter_native_image, flutter_svg, font_awesome_flutter, geocoding, geolocator, http, image_picker, intl, latlong2, native_device_orientation, native_exif, package_info_plus, path, path_provider, shared_preferences, sliver_fill_remaining_box_adapter, sliver_tools, sqflite, url_launcher, web
• dev_dependencies: flutter_lints, flutter_test

Process info

Memory	CPU	Elapsed time	Command line
22 MB	0.0%	02-00:35:27	dart development-service --vm-service-uri=http:/ --bind-address=127.0.0.1 --bind-port=0 --devtools-server-address=http:/
84 MB	0.0%	15:02	dart devtools --machine --allow-embedding --dtd-uri ws:/q3RJcKkLhbs=
1188 MB	2.2%	15:02	dart language-server --protocol=lsp --client-id=VS-Code --client-version=3.103.20250116
85 MB	45.2%	00:00	dart pub outdated --show-all --json
84 MB	0.0%	15:02	dart tooling-daemon --machine
136 MB	0.0%	15:02	flutter_tools.snapshot daemon
89 MB	0.0%	02:17	flutter_tools.snapshot debug_adapter
181 MB	0.0%	02:16	flutter_tools.snapshot run --machine --start-paused -d 00008130-001849E424A1401C --devtools-server-address http:/ --target /main.dart --flavor uat

[FMorschel]

Hi @karatekid430, can you reproduce this in a small Flutter app (e.g. the counter app or something similar)? Could you please provide a code that reproduces this? Thanks!