Đạt không dùng Visual Studio phiên bản miễn phí nên không kiểm tra được cách xem. Nhưng trên trang msdn thì có hướng dẫn như sau
Installing or Uninstalling Extensions
In the Extensions and Updates, find the extension you want to install. (If you know the name or part of the name of the extension, you can search in the Search Visual Studio Gallery window.) Click Download, then Install. You must restart Visual Studio in order to load the extension.
If you try to install an extension that has dependencies, the installer verifies whether they’re already installed. If they aren’t installed, the Extensions and Updates dialog box lists the dependencies that must be installed before you can install the extension.
If you want to stop using an extension, you can either disable it or uninstall it. Disabling an extension keeps it installed but unloaded. You can disable only VSIX extensions; extensions that were installed using an MSI can only be uninstalled. Find the extension and click Uninstall or Disable. You must restart Visual Studio in order to unload a disabled extension.
Em mở nội dung file ActivityLog.xml lên xem, Cái file có ghi trong báo lỗi đấy.