ERROR
When attempting to install an older version of the ArcGIS Pro SDK for .NET template and/or utilities Visual Studio extensions (.vsix) after uninstalling ArcGIS Pro SDK for .NET version 2.8, the following errors may occur.
Error: Install Failed The install of 'ArcGIS Pro SDK for .NET' was not successful for all the selected products. For more information, click on the install log link at the bottom of the dialog. ArcGIS Pro SDK for .Net This extension is not installable on any currently installed products.
Error: Install Failed The install of 'ArcGIS Pro SDK for .NET (Utilities)' was not successful for all the selected products. For more information, click on the install log link at the bottom of the dialog. ArcGIS Pro SDK for .Net (Utilities) This extension is not installable on any currently installed products.
This issue typically occurs when both Visual Studio 2022 and Visual Studio 2019 or 2017 have been installed. The problem is caused by an incompatibility in the VSIXManifest file for the ArcGIS Pro SDK templates and utilities.
The ArcGIS Pro SDK for .NET templates and utilities VSIXs have been updated with a fix for this issue for version 2.8 and later in the Visual Studio Marketplace and the ArcGIS Pro SDK for .NET GitHub release resources.
To fix this issue, follow these steps.
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