Typescript error: file "is not under 'rootDir' when running tsc #2

[gaurav-singh-103]

{
"compilerOptions": {
"target": "es5",
"module": "system",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false,
"noEmitOnError": true,
"rootDir": "app",
"outDir": "../wwwroot/app/"

},
"compileOnSave": true,

"exclude": [
"node_modules",
"wwwroot/lib"

]
}