object null is not iterable (cannot read property Symbol(Symbol.iterator))

[zahoorahmadshah]

Does this occur consistently?
Repro steps:

Action: vscode-docker.configure
Error type: TypeError
Error Message: object null is not iterable (cannot read property Symbol(Symbol.iterator))

Version: 1.9.0
OS: win32
OS Release: 10.0.18363
Product: Visual Studio Code
Product Version: 1.52.0
Language: en

Call Stack

NetCoreGatherInformationStep.prompt extension.bundle.js:924:29753

[bwateratmsft]

@zahoorahmadshah can you share information about your project? e.g. project file, dotnet version, etc.?

[bwateratmsft]

I think I know one way this could be happening; I'll put in a fix in the form of a better error message.

[bwateratmsft]

This is now fixed in Docker extension version 1.9.1.