What am I doing wrong? 0 files processed.

tsconfig:

    "tsc-alias": {
        "verbose": true,
        "resolveFullPaths": true
    }

script:

        "build": "tsc && tsc-alias",

used tsc-alias and it works:

[logn@logn ProtoBot]$ tsc && tsc-alias
tsc-alias info: 9 files were affected!

used build script and it fails

[logn@logn ProtoBot]$ npm run build

> protobot@2.1.0 build
> tsc && tsc-alias

tsc-alias info: 0 files were affected!

via npx also affects 0:

[logn@logn ProtoBot]$ npx tsc-alias
tsc-alias info: 0 files were affected!

Environment issue? my fault?