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/Updateconfiguration (devenv.exe)
 

For the latest documentation on Visual Studio 2017, see Visual Studio 2017 Documentation.

For the latest documentation on Visual Studio 2017, see -Updateconfiguration (devenv.exe) on docs.microsoft.com. Notifies Visual Studio to merge the Visual Studio packages on the system and check the MEF cache for any changes.

devenv /updateconfiguration  

Visual Studio runs this command automatically when you install a VSIX package. You should run devenv.exe /updateconfiguration after patching your files so that Visual Studio updates the MEF cache. This enables you to evaluate whether your fix is adequate.

The following command line causes Visual Studio to merge the Visual Studio packages on the system and check the MEF cache for any changes.

Devenv.exe /updateconfiguration  

Customizing Development Settings in Visual Studio
Devenv Command Line Switches