I have the same problem that was discussed in an October 20, 2015 session, https://gitter.im/TypeStrong/atom-typescript/archives/2015/10/20
that I get the error - is not included in the Typescript compilation context - even though the file is included in the "files": array in my tsconfig.json. I have refreshed that array several times. I have the latest 8.3.0 update of atom-typescript. Does anyone know the solution to this problem?