Compiler Error
XXX.ts file is part of the TypeScript compilation but it’s unused.
Add only entry points to the "files" or "include" properties in your tsconfig.
Resolve
edit properties in tsconfig.app.json
"files": [
"src/main.ts",
"src/polyfills.ts"
]
"include": [
"scr/**/*.d.ts"
]
if there is none of declare ts file in your project, write as this:
"include: []"