[BUG] Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed

[catbox143]

Type: Bug

Happened right after upgrade to v2.6.0. Just upgraded and pressed Restart Extensions button in Extensions menu of VS Code.

RobotCode output

Activate RobotCode Extension.
Try to activate python extension
Python Extension is active
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
create Language client: RobotCode Language Server for folder robotframework
trying to start Language client: RobotCode Language Server for folder robotframework
client for file:///Users/maksym.s/Developer/robotframework starting.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
client for file:///Users/maksym.s/Developer/robotframework running.
client for file:///Users/maksym.s/Developer/robotframework started.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . discover --read-from-stdin all -P ${workspaceFolder}/lib -P ${workspaceFolder}/include
executeRobotCode: exit code 0
executeRobotCode: exit code 0
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . discover --read-from-stdin tests -P ${workspaceFolder}/lib -P ${workspaceFolder}/include --suite Robotframework.Docker.Fixation.Sell.Fluent Rfq Maker.Setup Service
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
executeRobotCode: exit code 0
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . discover --read-from-stdin tests -P ${workspaceFolder}/lib -P ${workspaceFolder}/include --suite Robotframework.Docker.Fixation.Sell.Fluent Rfq Maker.Setup Service
executeRobotCode: exit code 0
client for file:///Users/maksym.s/Developer/robotframework stopped.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
create Language client: RobotCode Language Server for folder robotframework
trying to start Language client: RobotCode Language Server for folder robotframework
client for file:///Users/maksym.s/Developer/robotframework starting.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
client for file:///Users/maksym.s/Developer/robotframework running.
client for file:///Users/maksym.s/Developer/robotframework started.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . discover --read-from-stdin all -P /Users/maksym.s/Developer/robotframework/lib -P /Users/maksym.s/Developer/robotframework/include
Error: Can't get items for keywords treeview: Error: Request canceled.
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
executeRobotCode: exit code 0
executeRobotCode: exit code 0
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Select Environment for workspace folder 'undefined'
Select Environment for workspace folder 'undefined'
[INFO] Clearing language server caches...
[ERROR] Failed to clear cache for client: Error: DatabaseError: database disk image is malformed
[INFO] Cache clearing completed for all clients
client for file:///Users/maksym.s/Developer/robotframework stopped.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
create Language client: RobotCode Language Server for folder robotframework
trying to start Language client: RobotCode Language Server for folder robotframework
client for file:///Users/maksym.s/Developer/robotframework starting.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
executeRobotCode: exit code 0
client for file:///Users/maksym.s/Developer/robotframework running.
client for file:///Users/maksym.s/Developer/robotframework started.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . profiles list
Error: Can't get items for keywords treeview: Error: Request canceled.
executeRobotCode: /Users/maksym.s/Developer/robotframework/.venv/bin/python -u -X utf8 /Users/maksym.s/.vscode/extensions/d-biehl.robotcode-2.6.0/bundled/tool/robotcode --format json --no-color --no-pager -dp . discover --read-from-stdin all -P /Users/maksym.s/Developer/robotframework/lib -P /Users/maksym.s/Developer/robotframework/include
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
Error: Can't get items for keywords treeview: Error: DatabaseError: database disk image is malformed
executeRobotCode: exit code 0
executeRobotCode: exit code 0

Extension version: 2.6.0
VS Code version: Code 1.123.1 (ffa3c3f656c8df32d894e5f4d3673284d424205e, 2026-06-09T11:35:30+02:00)
OS version: Darwin arm64 25.5.0
Modes:

Python Version: 3.11.15 Poetry
RobotFramework Version: 7.4.1
Additional tools: robotframework-robocop==7.0.0

Details

System Info

Item	Value
CPUs	Apple M5 Pro (15 x 2400)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x106b [Google Inc. (Apple)], DEVICE=0x0000 [ANGLE (Apple, ANGLE Metal Renderer: Apple M5 Pro, Version 26.5.1 (Build 25F80))], DRIVER_VENDOR=Apple, DRIVER_VERSION=26.5.1 ACTIVE Machine model name: Mac Machine model version: 17.9 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: enabled_on trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgpu: enabled webnn: disabled_off
Load (avg)	2, 2, 2
Memory (System)	24.00GB (0.28GB free)
Process Argv	--crash-reporter-id 12d9c2fb-0226-4c49-a2db-10223ee0a1bb
Screen Reader	no
VM	0%

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[d-biehl]

did you try RobotCode: Clear Cache and Restart Language Servers ?

[catbox143]

did you try RobotCode: Clear Cache and Restart Language Servers ?

@d-biehl yep. Also, tried reload window, as well as just restart VS Code.

Maybe delete cache manually? Any hints on where it is on macOS by default?😅

Truly something with the new release, as I rolled back to previous release and, without any additional interactions, everything works as it supposed to.

[CedricAudouard]

Hi,
Same issue this morning, with this message :
Error: Can't get items for keywords treeview: Error: Request canceled.

I noticed this due to the fact that the play button is not visible anymore in the tests in case the test / terminal is killed and VsCode reloaded.
After "Developer reload page" or "RobotCode: Clear Cache and Restart Language Servers" the play button never reappeared and still have the error. I have to restart VsCode eventually to get it back.
So went back to previous version.
VsCode 1.123.2 / last RobotCode version v2.6.0

Thanks !

[catbox143]

After "Developer reload page" or "RobotCode: Clear Cache and Restart Language Servers" it does not reappear.

I tried again in my env, comparing to what @CedricAudouard said, the original issue I complained about persists...

So, @d-biehl, this issue is reproducible on my laptop.

[CedricAudouard]

After "Developer reload page" or "RobotCode: Clear Cache and Restart Language Servers" it does not reappear.

Sorry @catbox143 I mispelled what I thought, I meant the "Play" button didn't reappeared, even after reload and clear cache. So issue persists too on my laptop. I modifier my post above