Forum Discussion
Script Lab Error "This add-in could not be started"
I tried all of your suggestions, including #7, but nothing worked. I also tried using the Office Logging tool below, but I was unable to interpret or guess the information in the log.
https://learn.microsoft.com/en-us/microsoft-365/troubleshoot/diagnostic-logs/collect-office-diagnostic-logs
I think I will need to contact the Script Lab team. Do you know how can I do this?
Thank you.
To contact with Script Lab team you may here GitHub - OfficeDev/script-lab: Create, run and share your code directly from Office (you may use office-js project as well, but above is more direct way.)
Initial information about the project is here Microsoft Garage: Script Lab - an Office add-in
As for the error itself main question do you have such error for other web add-ins (e.g. Advanced Formula Environment aka Excel Lab, whatever) or such error is specifically for Scrip Lab.
If you have an error for other add-ins as well it could depend on combination of many factors, I'd start from WebView2 if it installed correctly.
I believe you google around, just in case couple of links which could help
Add-in could not be started error - Revenue Grid Knowledge Base
- The error only occurs for "Custom Functions" samples in Script Lab. I tried "Comment" samples in Script Lab and those samples worked. The only difference is that "Custom Functions" samples are UDFs, while other samples are not UDFs.
I tried running using Excel web, and it worked. But I cannot limit myself to using Excel web since certain key functionalities in Excel are only available on the Desktop app.
I tried a full reinstall of Microsoft Office on my Desktop, and also ran a "repair" on WebView2, but the issue remains.