How to Fix the Visual Studio 'Package Did Not Load Correctly' Error?

Troubleshooting the Visual Studio "Package Did Not Load Correctly" Error

When encountering the "The 'Microsoft.VisualStudio.Editor.Implementation.EditorPackage' package did not load correctly" error in Visual Studio, several potential causes can be explored.

According to user reports, this issue occurs in both Visual Studio 2012 and 2017. It can arise due to configuration changes or the installation of other extensions. To resolve the problem, it is recommended to close all instances of Visual Studio and delete all files within the following folder:

Visual Studio 2013

%localappdata%\Microsoft\VisualStudio.0\ComponentModelCache

Visual Studio 2015

%localappdata%\Microsoft\VisualStudio.0\ComponentModelCache

Visual Studio 2017

%localappdata%\Microsoft\VisualStudio.0_xxxx\ComponentModelCache

Visual Studio 2019

%localappdata%\Microsoft\VisualStudio_xxxx\ComponentModelCache

Visual Studio 2022

%localappdata%\Microsoft\VisualStudio_xxxx\ComponentModelCache

Once the specified files are deleted, restart Visual Studio, and the error should be resolved. This solution has been effective for many users who have encountered this issue.

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