Unable to open 'README.md': Cannot open notebook of type 'markdown'.

[magnus-trent]

Following instructions leads to the same repeated issue, "Unable to open 'README.md': Cannot open notebook of type 'markdown'."

Restarting VS Code does nothing.

[Jack-Works]

Similar question:

Cannot open resource with notebook editor type '${input.viewType}', please check if you have the right extension installed or enabled.

[Jack-Works]

Now the error changes to

Unable to open 'README.md': Cannot read property 'match' of undefined.

[firelizzard18]

If the file is empty, you're probably running into #4