bundles manager takes very long time to load

[ianzone]

Hi, the extension version is 3.8.0, and it usually takes 5min to load, is that normal? Also, is there any CDN or dedicated server for Chinese users? cuz it's troublesome to download those bundles here. Thx

[ianzone]

I mean, I've already put ST domain into my proxy whitelist, so it's the same download speed as without the proxy. The timeout case is before I whitelist the domain. 

Nevertheless, when I don't run my proxy, the plugin load speed is still that slow. 

[Julien D]

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@ianzone wrote:

I've put *st.com into the proxy whitelist

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*st.com is maybe not enough, I think you should add stmicroelectronics.d3.sc.omtrdc.net as well.

[ianzone]

omtrdc.net is whitelisted, still slow. And even if I don't run any proxy, still slow to load.

If network is the case, whether with or without proxy, it shouldn't block the thread to load local toolchain. 

[ianzone]

sometimes it fails

2026-04-24 10:44:10.437 [Info]  Adding STM32Cube CLI path to environment: c:\Users\yihen\.vscode\extensions\stmicroelectronics.stm32cube-ide-core-1.2.1-win32-x64\resources\binaries\win32\x86_64

2026-04-24 10:44:10.559 [Info]  Configuring CUBE_BUNDLE_PATH environment: C:\Users\yihen\AppData\Local\stm32cube\bundles

2026-04-24 10:44:10.560 [Info]  NODE_EXTRA_CA_CERTS is not set

2026-04-24 10:44:10.650 [Info]  CMSIS_PACK_ROOT=C:\Users\yihen\AppData\Local\stm32cube\packs

2026-04-24 10:44:15.379 [Info]  cube wrapper version: 0.10.2

2026-04-24 10:44:16.317 [Info]  Online bundle cache built

2026-04-24 10:51:17.893 [Info]  Installing STM32Cube bundles prerequisites

2026-04-24 10:52:16.145 [Error]  Failed to initialize STM32Cube bundles: Failed to get list of available updates. Command failed with

2026-04-24 10:52:16.150 [Info]  STM32Cube Core activated (485736ms)

2026-04-24 10:52:16.152 [Info]  Syncing CMSIS-Pack metadata for C:\Users\yihen\AppData\Local\stm32cube\packs

2026-04-24 10:52:16.154 [Info]  No need to sync metadata, since recently updated.

[ianzone]

I suspect this extension downloaded the toolchain everytimes, even if there were local files

[Julien D]

Hi @ianzone,

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I suspect this extension downloaded the toolchain everytimes, even if there were local files

Be assured, it is not downloaded every time. However, yes, when registering a bundle in a project, network access may be used to get an updated list of bundles in the local metadata cache.

I see 2 errors:

[Error]  Failed to initialize STM32Cube bundles: Failed to get list of available updates.

Likely, the cube bundle list-online command run by the extension at startup failed, while a couple of days ago you said it worked fine. Was there any network change in the meantime?

The screenshot notification.

Do you already have any .settings/bundle.store.json file in your project?

If so does it contain Ninja?

Maybe try to do the same operation from the CLI to ensure no useful error message is being hidden by the UI: cube --cwd <project_path> bundle install ninja --project