tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "build/dist",
    "sourceMap": true,
    "jsx": "react",
    "declaration": false,
    "module": "es2015",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "target": "es5",
    "typeRoots": ["node_modules/@types"],
    "lib": ["es2018", "dom"],
    "allowSyntheticDefaultImports": true,
    "rootDirs": ["/src", "/test", "/mock", "./typings"],
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "suppressImplicitAnyIndexErrors": true,
    "noUnusedLocals": true,
    "allowJs": true,
    "strict": true,
    "paths": {
      "@/*": ["./src/*"],
      "@@/*": ["./src/.umi/*"]
    }
  }
}