This seems related to 2f8c5c1.

Downloaded older Insider builds:

• Does not repro with 889c720, so not 2f8c5c1
• Repro with 9d47285

It's somewhere in here I believe: @alexandrudima

I'd say this is caused by this line of code. We have it since a long time but my assumption is that recent changes in the extension startup sequence is now triggering this...

To verify: Write an extension that activates on start up (* activation event) with the code below. Start, restart a few times and make sure it never prints errors on the console, but the env object

import * as vscode from 'vscode';
console.log(vscode.env);

@jrieken I am seeing a new error popping up when doing so:

TypeError: Cannot read property 'machineId' of undefined

Related to: 31d39b0

@jrieken works fine when calling from within the activate method, just not when called outside.

I cannot reproduce this from Code stable when I log env right after the vscode import.

@bpasero You are not on latest! There the variable is called initTelemetryInfo. Please verify this with a later build.

@jrieken ah ok sorry.

Verified on Mac this works 👍