React native Typescript 路径别名无法解析模块

Question

所以基本上，我使用 RN 主页中的命令行使用 Typescript 创建了我的 React Native： npx react-native init MyApp --template react-native-template-typescript

之后，我运行该项目并成功构建。 但是，当我添加路径别名以导入我的文件时，它抛出了一个错误： Unable to resolve module #folder/file from... could not be found within the project or in these directories: node_modules

我已经在谷歌上关注了一些教程和错误解决，但我没有遇到运气。

这是我的.babelrc文件（我试图将文件从 babel.config.js 更改为 .babelrc，正如一些解析器所说，但它仍然没有用）

{
  "presets": ["module:metro-react-native-babel-preset"],
  "plugins": [
    [
      "module-resolver",
      {
        "root": ["./src"],
        "extensions": [
          ".js",
          ".jsx",
          ".ts",
          ".tsx",
          ".android.js",
          ".android.tsx",
          ".ios.js",
          ".ios.tsx"
        ],
        "alias": {
          "#src/*": [
            "./src/*"
          ],
          "#configs/*": [
            "./src/config/*"
          ],
          "#actions/*": [
            "./src/redux/actions/*"
          ],
          "#reducers/*": [
            "./src/redux/reducers/*"
          ],
          "#store/*": [
            "./src/redux/store/*"
          ]
        }
      }
    ]
  ]
}

tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "esnext", 
    "module": "commonjs",
    "lib": [
      "ES2017",
      "DOM",
      "ES2015",
      "ES2015.Promise"
    ], 
    "allowJs": true, 
    "jsx": "react-native",
    "noEmit": true, 
    "incremental": true,
    "importHelpers": true,
    "isolatedModules": true,
    "strict": true,
    "moduleResolution": "node",
    "baseUrl": ".", 
    "paths": {
      "#src/*": [
        "src/*"
      ],
      "#configs/*": [
        "src/config/*"
      ],
      "#actions/*": [
        "src/redux/actions/*"
      ],
      "#reducers/*": [
        "src/redux/reducers/*"
      ],
      "#store/*": [
        "src/redux/store/*"
      ]
    }, 
    "types": ["jest"],
    "allowSyntheticDefaultImports": true, 
    "esModuleInterop": true, 
    "skipLibCheck": false, 
    "resolveJsonModule": true 
  },
  "exclude": [
    "node_modules",
    "babel.config.js",
    "metro.config.js",
    "jest.config.js"
  ]
}

我的文件夹和文件结构

├───assets
├───components
├───config
│       constants.ts
│
└───redux
    ├───actions
    │       index.ts
    │       stateActions.ts
    │
    ├───reducers
    │       index.ts
    │       stateReducer.ts
    │
    └───store
            index.ts

真的很期待收到你们的答复。 太感谢了

P/s：如果你不介意的话，请看看我的仓库： https://github.com/NotJackieTruong/rn_test_typescript

Answer 1

要完成这项工作，只需将package.json文件添加到您要访问的每个目录中，其中包含一个属性name 。 例如：

├───assets
└───components
    └───package.json

package.json内容：

{
  "name": "components"
}

然后你可以像这样导入：

import SomeComponent from 'components/SomeComponent';

还有一篇很好的文章描述了它是如何工作的。

Answer 2

将此添加到您的tsconfig.json

"include": ["./src/**/*"]

然后重新启动您的 TypeScript 服务器

Cmd+Shift P然后选择TypeScript: Restart TS server

Answer 3

tsconfig.json

 "baseUrl": ".", 
 "paths": {
      
      // this is for src directory
      "@*": ["src/*"],
      "@configs/*": ["src/config/*"
      ],

babel.config.js

module.exports = function (api) {
    api.cache(true);
    return {
        presets: ["babel-preset-expo"],
        plugins: [
            [
                "module-resolver",
                {
                    alias: {
                        "@config": "./src/config",
                         ....
                        
                    }
                }
            ]
        ]
    };
};


        }

Answer 4

在 tsconfig.json 中

{
...
   "compilerOptions":{
        ...
       "baseUrl":"."
       "paths":{
            "@folder": "src/folder" <--assuming app logic is in src/ 
        }
   }
}

在 babel.config.js 中

module.exports = {
...
  plugins: [
    ["module-resolver",{
      "alias":{
        "@folder": "./src/folder",
      }
    }]
  ],
};

从模拟器/设备卸载应用程序

重启 metro 服务器yarn start --reset-cache

构建应用yarn run android/ios

Answer 5

对于那些仍然坚持使用所有解决方案的问题的人，您只需确保以下几点：-

npm install --save-dev babel-plugin-module-resolver

要么

yarn add --dev babel-plugin-module-resolver

babel.config.js 或 .babelrc

确保这是在 babel 中开发而不是生产<<<<<<<<<<<<< VIP

module.exports = {
  presets: ['module:metro-react-native-babel-preset'],
  plugins: ['react-native-reanimated/plugin'],
  env: {
    development: { // <<< make sure this is development not production
      plugins: [
        'react-native-paper/babel',
        [
          'module-resolver',
          {
            root: ['./src'],
            extensions: [
              '.js',
              '.jsx',
              '.ts',
              '.tsx',
              '.android.js',
              '.android.tsx',
              '.ios.js',
              '.ios.tsx',
            ],
            alias: {
              '@hooks': ['./src/hooks'],
              '@familyway': ['./src'],
              '@assets': ['./src/Assets'],
              '@components': ['./src/Components'],
              '@constants': ['./src/Constants'],
              '@helpers': ['./src/helpers'],
              '@onboarding': ['./src/onBoarding'],
              '@redux': ['./src/redux'],
              '@screens': ['./src/Screens'],
              '@lib': ['./src/lib'],
              '@containers': ['./src/containers'],
            },
          },
        ],
      ],
    },
  },
};

现在可以使用 tsconfig.json

{
  "compilerOptions": {
    "target": "ES2022",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext",
      "esnext.asynciterable",
      "esnext.intl",
      "esnext.symbol",
      "esnext.array"
    ],
    "allowSyntheticDefaultImports": true,
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "noImplicitAny": true,
    // "noImplicitReturns": true,
    // "noImplicitThis": true,
    "esModuleInterop": true,
    "alwaysStrict": true,
    "noFallthroughCasesInSwitch": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "module": "commonjs",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "react-native",
    "incremental": true,
    "noEmitOnError": true,
    "baseUrl": "./src",
    "paths": {
      "@hooks/*": ["hooks/*"],
      "@components/*": ["Components/*"],
      "@assets/*": ["Assets/*"],
      "@screens/*": ["Screens/*"],
      "@constants/*": ["Constants/*"],
      "@helpers/*": ["helpers/*"],
      "@onboarding/*": ["OnBoarding/*"],
      "@redux/*": ["redux/*"],
      "@containers/*": ["containers/*"],
      "@lib/*": ["lib/*"]
    }
  },
  "include": [
    "next-env.d.ts",
    "additional.d.ts",
    "src/**/*.ts",
    "src/**/*.js",
    "src/**/*.tsx",
    "./App.tsx",
    "./src/**/*",
    "src/**/*",
    "src/**/*.*"
  ],
  "exclude": ["node_modules"]
}