I am getting Typescript error:

/home/codewarrior/ts/node_modules/.registry.npmjs.org/ts-node/8.0.2/node_modules/ts-node/src/index.ts:228
    return new TSError(diagnosticText, diagnosticCodes)
           ^
TSError: ⨯ Unable to compile TypeScript:
test.ts(4,33): error TS2306: File '/home/codewarrior/ts/solution.ts' is not a module.
``