Interface not registered exception from HRESULT:0x80040155

GGe 0 Reputation points


I 'm tryingto create a VSTO project for excel, and when i select to create to project on the starting screen I get the Interface not registered exception from HRESULT:0x80040155

Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
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  1. Anna Xiu-MSFT 26,566 Reputation points Microsoft Vendor

    Hi @GGe, 

    Welcome to Microsoft Q&A!

    To create Excel VSTO Add-in project in Visual Studio, please view the document and you need to meet the following requirements:

    It is noted that the office project templates are available only in Visual Studio 2017 with the Office/SharePoint development workload. 



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