Status Bar Error
Choose how you want errors and warnings displayed. You can choose to have linter messages displayed in the statusbar, on the line of the error or icons in the gutter. Colors and which gutter icons are displayed are all found in settings.
Show linter messages in the statusbar and display gutter icons.
Show linter messages on the line itself and display gutter icons.
Install StatusBarError from the Visual Studio Code extension gallery.
StatusBarError's repository is here.