Windows Server 2016 - The type initializer for 'TimeZoneNames.TZNames' threw an exception.

[akirby]

I have the following implementation in .NET Framework 4.7.1

var tzNames = TZNames.GetAbbreviationsForTimeZone(tz.Id, CultureInfo.CurrentCulture.Name);

which throws the following error with stack trace:
The type initializer for 'TimeZoneNames.TZNames' threw an exception.
at TimeZoneNames.TZNames.GetLanguageKey(String languageCode, Boolean forDisplayNames)
at TimeZoneNames.TZNames.GetAbbreviationsForTimeZone(String timeZoneId, String languageCode)

I have run windows update to ensure that I am current, but not sure if i need to install some other dependency on the server.

Running Get-Culture on the box returns

LCID             Name             DisplayName
----             ----             -----------
1033             en-US            English (United States)

I have also run txutil to update the Timezone registry, but not sure if this is the correct step.

Please let me know if there is something else I can check on my server, as this code works on my dev machine.

[akirby]

tz.Id verified through logging is "Eastern Standard Time".

The tz object is from TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");

[mattjohnsonpint]

Nothing else should need to be installed. Could you please do some debugging on the application itself to see if "en-US" is being passed for the language code?

I hit something similar a long time ago with #32, but that has been resolved.

Could you please provide the specific exception name and message? I only see the stack trace. Thanks.

(Also, you should probably be using the CurrentUICulture instead of CurrentCulture, though I doubt that is the cause of the exception.)

[robin-salih-fluke]

I had a similar issue, this test demonstrates it:

The call to TimeZoneInfo.FindSystemTimeZoneById adds another entry to the list of windows time zones, which then causes ToDictionary to throw an exception as it is the duplicate key (case differs).

[akirby]

@robin-salih-fluke that is interesting.

[Wangota]

@mattjohnsonpint

Any chance this is fixed?
I am experiencing the same exact issue: See stacktrace below.
lean forDisplayNames)
at TimeZoneNames.TZNames.GetTimeZonesForCountry(String countryCode, String languageCode, DateTimeOffset threshold)
at BusinessLogic.Utils.TimeZones.TimeZonesByCountry(String countryCode, String language)
at Events.Controllers.EventController.CountryTimeZones(String countryID)

Exception Message: The type initializer for 'TimeZoneNames.TZNames' threw an exception."

[Wangota]

@akirby @robin-salih-fluke
Have you resolved this issue?

[mattjohnsonpint]

I'll take another look. Thanks.