tsconfig.json Error: Build: No inputs were found in config file — how to fix?

Hi everyone! I'm new to TypeScript and using Visual Studio 2015 with ASP.NET Core. I created a project, added a `tsconfig.json` file to the root, but when compiling I get an error: > Build: No inputs were found in config file. Specify 'include' or 'files' property, or remove 'rootDir' to allow all files in the 'src' folder to be used. Here is my `tsconfig.json`: ```json { "compilerOptions": { "target": "es5", "module": "commonjs", "rootDir": "src", "outDir": "dist", "strict": true } } ``` In the `src` folder I have a file `app.ts`: ```typescript function greet(name: string): string { return `Hello, ${name}!`; } console.log(greet("World")); ``` But TypeScript does not see this file. I tried restarting the studio, deleting and recreating `tsconfig.json` — it doesn't help. Tell me, what am I doing wrong? Why doesn't the compiler find input files even though they are in the `src` folder? Thanks in advance! <<>>

Cause of the error

The error is in