Cannot update extensions based on the new extensibility model

[ThomasArdal]

I'm developing several extensions using the new extensions model (named VisualStudio.Extensibility maybe). The Visual Studio Updater is launched when installing and updating these extensions. But every time I want to update such an extension, I get the following message in the installer:

(the screenshot is from an issue on my repo reported by a user. But I'm getting the same message in another language)

The only way to update the extension is to do this:

• Launch Visual Studio Installer.
• Click Modify on your Visual Studio version.
• Go to the Individual components tab.
• Search for 'exception'.
• Uncheck the 'Exception Visualizer'
• Click 'Modify'
• Then install the extension from scratch.

These are the instructions I have given for my extension Exception Visualizer.

Is there something broken in the upgrade process for this kind of extension? Or am I doing something wrong?