Internal error: Expected value to be neither null nor undefined: defaultHostName

[Premkarthic]

We are currently encountering difficulties deploying a Java Azure Web App through Visual Studio Code. Although it was functioning properly before, we are now experiencing an unexpected error.

[nturinski]

Initial investigation notes:

• I suspect that defaultHostName is throwing an error from when we are creating the SiteClient.
• That in turn causes the WebAppResolver to throw an error because we nonNullValue check site
• Because it resolves as undefined, which is an accepted value from the resolver, when we try to check this.contextValuesToAdd in CompatibleResolvedApplicationResourceTreeItem, it's throwing this error