Cannot set properties of undefined (setting 'terminal') in copilot agent.

[felipelopesnox]

Type: Bug

Cannot set properties of undefined (setting 'terminal')

I'm encountering an error when sending any message via Copilot. The issue started after I updated to VSCode Insiders version:
Version: 1.103.0-insider (user setup)
Commit: 73fbb0c
Date: 2025-07-10T17:05:08.924Z
Electron: 35.6.0
ElectronBuildId: 11847422
Chromium: 134.0.6998.205
Node.js: 22.15.1
V8: 13.4.114.21-electron.0
OS: Windows_NT x64 10.0.26100

Extension version: 0.30.2025071002
VS Code version: Code - Insiders 1.103.0-insider (73fbb0c, 2025-07-10T17:05:08.924Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i7-13650HX (20 x 2803)
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)	31.69GB (3.25GB free)
Process Argv	--crash-reporter-id 32d6f9fd-7ea9-4201-ab4b-2914fe08d2ba
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt551cf:31249598
c4g48928:30535728
vscrp:30624060
962ge761:30841072
2e7ec940:31000449
cppperfnew:30980852
dwnewjupytercf:31046870
nativeloc1:31118317
e80f6927:31120813
dwcopilot:31158714
c3hdf307:31184662
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
hdaa2157:31222309
copilot_t_ci:31333650
g012b348:31231168
pythoneinst12:31251391
c7cif404:31309980
pythonpulldiag:31287486
6gi0g917:31259950
996jf627:31264550
pythonrdcb7:31268811
usemplatestapi:31297334
jdghv92:31317040
jjjhb125:31275147
6518g693:31302842
generatesymbolt:31280541
convertfstringf:31280702
j97ad248:31306657
usemarketplace:31343026
0g1h6703:31329154
mytest2:31335659
nes-emitfast-1:31333560
replacestringexc:31340153
onetestforazureexp:31335613
6abeh943:31336334
envsdeactivate2:31343187
0927b901:31340060
jbdfg126:31340538
f76d9909:31342392
i3fce822:31345573

[tybreakyr]

This is happening to me also after updating.

[caleteeter]

Same here on both windows and mac.

[saacifuentesmu-titoma]

Same here on Windows after installing VS Code!

[JeetMajumdar2003]

same here in VS Code insider.

[fergalmoran]

Same with the linux-x64 insiders download from
https://code.visualstudio.com/sha/download

[joshspicer]

Thank you for taking the time to report. We are working on releasing a new Insiders with the fix.

/duplicate #255209

[vs-code-engineering]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for similar existing issues. See also our issue reporting guidelines.

Happy Coding!