Importing solution extensions does not work

[gabbsmo]

I have created a vsext file using the "Managed extensions" context menu item on my solution.

{
  "id": "ef84d31c-c4cc-4dc4-9060-9be14892613a",
  "name": "FOO",
  "description": "BAR",
  "version": "1.0",
  "extensions": [
    {
      "name": "Command Task Runner",
      "vsixId": "fc1aafb2-321e-41bd-ac37-03b09ea8ef31"
    },
    {
      "name": "Markdown Editor",
      "vsixId": "9ca64947-e9ca-4543-bfb8-6cce9be19fd6"
    }
  ]
}

When I open the solution I get prompted to install the extensions. After I click Install... nothing happens. Importing manually from the Extensions > Import and Export extensions menu works as expected.

Using Visual Studio Enterprise 16.3.0.

[gabbsmo]

Just tried this with 0.6.58 and the issue is reproducible with it as well as the version in the Visual Studio Gallery. Enabling "Install for all users" made no difference.

[gabbsmo]

Just updated Visual Studio 2019 to 16.4.1 and the issue persists.

[vchirikov]

yep, bad news. Same issue

[mlafleur]

I am seeing the same issue using VS v16.5.1

[jvsca]

I am seeing the same issue using VS v16.5.3.

A workaround: load 10 or 15 at a time: 47 extensions: 1 --> OK 10 --> OK 19 --> Fail 15 --> OK 2 --> OK

[Hefaistos68]

Is there actually a way to have solution extensions without having this extension installed? Something built in into Visual Studio? I mean, we are now at VS2022 17.4.4, someone must have thought about this already?