Copilot thinks a file is empty

[RaymondTracer]

Type: Bug

Ask copilot to look at a file by prompting "Look at #[file]" and it'll state that it's empty

Extension version: 0.22.1 VS Code version: Code 1.95.1 (65edc4939843c90c34d61f4ce11704f09d3e5cb6, 2024-10-31T05:14:54.222Z) OS version: Windows_NT x64 10.0.19045 Modes:

System Info

|Item|Value| |---|---| |CPUs|AMD Ryzen 7 3700X 8-Core Processor (16 x 3600)| |GPU Status|2d_canvas: enabled
canvas_oop_rasterization: enabled_on
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled
webnn: disabled_off| |Load (avg)|undefined| |Memory (System)|127.95GB (81.05GB free)| |Process Argv|--crash-reporter-id 0519d26b-0da2-49f3-83f1-15549dacfd23| |Screen Reader|no| |VM|0%|

A/B Experiments

``` vsliv368cf:30146710 vspor879:30202332 vspor708:30202333 vspor363:30204092 vscod805cf:30301675 binariesv615:30325510 vsaa593cf:30376535 py29gd2263:31024239 c4g48928:30535728 azure-dev_surveyone:30548225 vscrpc:30673769 a9j8j154:30646983 962ge761:30959799 pythongtdpath:30769146 pythonnoceb:30805159 asynctok:30898717 pythonmypyd1:30879173 h48ei257:31000450 pythontbext0:30879054 cppperfnew:31000557 dsvsc020:30976470 pythonait:31006305 dsvsc021:30996838 bdiig495:31013172 dvdeprecation:31068756 dwnewjupyter:31046869 2f103344:31071589 impr_priority:31102340 nativerepl1:31139838 refactort:31108082 pythonrstrctxt:31112756 cf971741:31144450 iacca1:31171482 notype1:31157159 5fd0e150:31155592 dwcopilot:31170013 j44ff735:31175163 ```

[joyceerhl]

I cannot repro this, does this happen for all files or specific file types / file sizes?

[RaymondTracer]

I think it only happens on larger files, the file is a 19MB assembly file, only found out recently in Google AI Studio that it uses 9 million tokens so that is probably why, maybe it'd be better to show an error instead of having the AI say that file is empty.