salesforcedx-vscode: Cannot read properties of null (reading 'capabilities')
Type: Bug
This error ocurrs when the vsCode starts
Extension version: 59.5.1 VS Code version: Code 1.84.2 (1a5daa3a0231a0fbba4f14db7ec463cf99d7768e, 2023-11-09T10:51:52.184Z) OS version: Windows_NT x64 10.0.19045 Modes:
System Info
| Item | Value |
|---|---|
| CPUs | 11th Gen Intel® Core™ i7-1185G7 @ 3.00GHz (8 x 1805) |
| 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 video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled |
| Load (avg) | undefined |
| Memory (System) | 15.73GB (1.64GB free) |
| Process Argv | –crash-reporter-id 4f197115-1501-46a7-8fd3-5e8f9c3fa569 |
| Screen Reader | no |
| VM | 0% |
A/B Experiments
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pythonregdiag2:30871582
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pythonmypyd1:30879173
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accentitlementst:30887150
dsvsc016cf:30886111
dsvsc017:30886112
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aa_t_chat:30882232
About this issue
- Original URL
- State: closed
- Created 7 months ago
- Comments: 30 (11 by maintainers)
Hi @JohannyRA - I had the same issue as you. I’m using a mac, so I don’t believe this is OS specific.
The problem is that the Apex Language Server is failing to start. In my case (and I suspect yours too), it was because my apex.db had become corrupted somehow.
On hunting around through the code, I found this article which suggested deleting the local (project level) apex database.
This worked for me. My extensions are now working correctly and I can navigate around Apex classes again which is a relief.
How to fix it
So in practical terms, here’s what I recommend trying:
1. Close VSCode
I actually also completely uninstalled the extensions and reinstalled them at the end of these steps, but I don’t think that was strictly necessary.
2. Find and kill any orphaned apex language server processes.
Windows
On windows… There is some advice above. I would have to do a bit more reading to give you a definitive answer.
However, there is a class in this repo that does this… so maybe you could find your answer there too. See a combination of:
Or just follow this article on How to Kill a Process in Windows
Mac
On a Mac, this can be achieved with 2 commands.
To see any running apex language processes, execute:
To kill the processes, execute:
(There are many ways to achieve this, this is just the simplest way I found… Make sure you understand what the flags mean etc.)
3. Delete the
PROJECT_DIR/.sfdx/tools/<Salesforce Release>directoryOn Mac, run the following command (where
PROJECT_DIRis your sfdx project directory andSF_RELEASEis the numbered release folder)for me, this folder was:
my_sfdx_repo/.sfdx/tools/2464. Restart VSCode
At this point, the apex language service should rebuild your apex.db database file and any other files it needs and start the apex language server.
Now you should be good to go 😃 😃
Hope that helps!!
Duncan
@dunks184 It works well now.