Request textDocument/codeAction failed. Error: Document is not available:

[kittaakos]

[Error - 10:37:15 AM] Request textDocument/codeAction failed.
Error: Document is not available: file:///Users/akos.kitta/Documents/Arduino/sketch_november22b/sketch_november22b.ino
    at handleResponse (http://localhost:3000/bundle.js:130980:36)
    at processMessageQueue (http://localhost:3000/bundle.js:130804:9)
    at http://localhost:3000/bundle.js:130787:7
    at run (http://localhost:3000/bundle.js:127466:13)
    at runIfPresent (http://localhost:3000/bundle.js:127495:21)
    at onGlobalMessage (http://localhost:3000/bundle.js:127535:17)

Although the file was available:

[kittaakos]

Same as: arduino/arduino-pro-ide#107

[cmaglie]

The way LSP.TextDocument is handled has been changed, this issue is now outdated.