Github Copilot does not work when using Gemini

[FlowerRealm]

Type: Bug

I tried to use my own api to use the Gemini model in Github Copilot. Sometimes it worked, but most of the time it showed that

很抱歉，你的请求已失败。请重试。请求 ID: bd888b41-da4a-4da8-b16b-a198bc4a5c9c

原因: Request Failed: 400 [{ "error": { "code": 400, "message": "* GenerateContentRequest.tools[0].function_declarations[20].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[21].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[22].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[23].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[24].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[25].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[26].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[27].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[28].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[29].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[30].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[31].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[32].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[33].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[34].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[35].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[36].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[37].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[38].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[39].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[40].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[41].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[42].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[43].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[44].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n* GenerateContentRequest.tools[0].function_declarations[45].name: Invalid function name. Must start with a letter or an underscore. Must be alphameric (a-z, A-Z, 0-9), underscores (), dots (.) or dashes (-), with a maximum length of 64.\n", "status": "INVALID_ARGUMENT" } } ]

VS Code version: Code 1.99.3 (17baf84, 2025-04-15T23:18:46.076Z)
OS version: Windows_NT x64 10.0.27842
Modes: Unsupported

System Info

Item	Value
CPUs	12th Gen Intel(R) Core(TM) i9-12900H (20 x 2918)
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)	15.68GB (5.28GB free)
Process Argv	--crash-reporter-id 315ebcef-82f1-41d7-b931-e0124b00e139
Screen Reader	no
VM	0%

Extensions (22)

Extension	Author (truncated)	Version
project-manager	ale	12.8.0
a-file-icon-vscode	ato	2.0.1
path-intellisense	chr	2.10.0
competitive-programming-helper	Div	2025.4.1744912235
gitlens	eam	17.0.3
copilot	Git	1.312.0
copilot-chat	Git	0.26.7
vscode-pull-request-github	Git	0.108.0
comment-translate	int	3.0.0
polacode-2019	jef	0.6.1
vscode-clangd	llv	0.1.33
vscode-language-pack-zh-hans	MS-	1.99.2025041609
debugpy	ms-	2025.6.0
python	ms-	2025.4.0
vscode-pylance	ms-	2025.4.1
cmake-tools	ms-	1.20.53
cpptools	ms-	1.25.3
korofileheader	OBK	4.9.3
indent-rainbow	ode	8.3.1
material-icon-theme	PKi	5.21.2
background	sha	2.0.3
cmake	twx	0.0.17

(1 theme extensions excluded)

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805:30301674
binariesv615:30325510
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dwnewjupytercf:31046870
pythonrstrctxt:31112756
nativeloc2:31192216
5fd0e150:31155592
dwcopilot:31170013
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
hdaa2157:31222309
copilot_t_ci:31222730
e5gg6876:31282496
cp15370_t:31280197
pythoneinst12:31285622
bgtreat:31268568
4gafe986:31271826
563cc122:31253270
31787653:31262186
3e8i5726:31271747
996jf627:31283433
usemplatestapi:31297334
7bj51361:31289155
747dc170:31275177
aj496949:31278748
pylancecolor:31297615
aj953862:31281341
generatesymbolt:31295002
convertfstringf:31295003
gendocf:31295004

[lramos15]

Do you have logs? What do you mean the API was expired?