Visual Studio Code syntax highlighting not working

Question

I am using Visual Studio Code (VSC) as my IDE. My computer just updated to Catalina 10.15.2 (19C57) and since the update, now VSC is not highlighting syntax errors. The extensions I have seem to be working and it recognizes my miniconda python environment.

Is there a solution for this yet? I was avoiding Catalina as I know it has caused lots of errors, but now that I was forced to install it I need a solution as I love VSC.

Solution 1

In my case, the Catalina installation didn't remove my Python installation.

After checking as suggested by @Brett Cannon in his comment, the update to Catalina uninstalled some extensions from VS Code. These are not available in the VS Code extension Marketplace anymore, so there must be an issue regarding compatibility. I fixed it after I opened my command palette (Command + Shift + p) and typed python: select linter. Then selected pylint, selected the install with conda option, Close/Open VS Code and now it's working(though it's still not shown in my extensions section in VS Code). It's necessary to point out that you will have to install pylint in every Python environment you are using. In my case I have multiple Conda environments.

Solution 2

It's very specific but for me it was a missing semicolon in my css (styled-component). I use styled-components in react and it didn't throw an error for missing semicolon but highlighting was suddenly gone. I had given up and left it that way until I came up with the solution quite by accident.