Comment by Maarten88

This is my tsconfig.server.json:

   {
      "files": [],
      "compilerOptions": {
        "baseUrl": ".",
        "moduleResolution": "node",
        "target": "es2017",
        "jsx": "react",
        "experimentalDecorators": true,
        "sourceMap": true,
        "skipDefaultLibCheck": true,
        "lib": [ "es2017", "dom" ],
        "allowJs": false,
        "paths": {
          "*": [ "./ClientApp/types/*", "*" ]
        }
      },
      "exclude": [
        "bin",
        "obj",
        "node_modules"
      ]
    }

edit: remove unneeded entries