Fix failed to create new Scheduled Task RemoteException

Windows Admin Center is a locally deployed, browser-based app. It is used for managing Windows servers, clusters, hyper-converged infrastructure, as well as Windows 10 PCs. It is a free product and is ready to use in production. In this article, I will show you how to Fix failed to create new Scheduled Task RemoteException. You may like the following articles: How to Create Shared Folder in Windows Sandbox, and Mendeley Cite ECITE40001 Error: Fix issue using Microsoft Word Desktop application.

When prompted with an error when trying to access WAC from other browsers saying the site is not secure. See the following links for “How to setup Windows Admin Center, “How to install Chocolatey” and “How to install, upgrade and uninstall software with Chocolatey“. You may also be interested in Winglet, which is also a Windows Package manager “Winglet”. See how to install Winglet and how to install applications with Winglet CLI.

Reason for the Error “Fix failed to create new Scheduled Task RemoteException”

The following error displayed below is a result of a bug in the Windows Admin Center. I was able to successfully create a scheduled task on a monthly basis in my lab environment as shown in the image below.

Error: Failed to create new Scheduled Task RemoteException: Exception calling UpdateTriggers RemoteException: You cannot call a method on a null-valued expression. RemoteException: Cannot validate argument on parameter Xml - daily task ok but monthly not

No Fix at the Moment

At the time of writing this piece, there isn’t a fix yet. I found this error was reported also in the Windows Server user voice. Please see Why you should attend VeeamOn 2023, How to create an Advanced Windows Scheduled Task, How to unlink FaceTime from Mac, and how to create, edit and delete a scheduled task via the Command Prompt.

Note: Daily tasks can be created, edited, run, and deleted successfully.

This issue comes up when you select the trigger on a monthly (monthlyDOW) basis. I am sure this will be fixed soon. Please see this exciting guide on how to use Prometheus for Monitoring, and how to Failed to create a new scheduled task name RemoteException: Cannot create the file when that file already exists.

I hope you found this blog post helpful. If you have any questions, please let me know in the comment session.