tsconfig.electron-main.json

{
    "compilerOptions": {
        "sourceMap": true,
        "declaration": false,
        "moduleResolution": "node",
        "experimentalDecorators": true,
        "target": "es5",
        "types": ["node"],
        "lib": ["es2017", "es2016", "es2015", "dom"]
    },
    "files": ["electron-main.ts"],
    "exclude": ["node_modules", "**/*.spec.ts"]
}