排毒测试：SyntaxError：const 声明中缺少初始化程序

Posted 2023-04-15

【中文标题】排毒测试：SyntaxError：const 声明中缺少初始化程序

【英文标题】：Detox tests: SyntaxError: Missing initializer in const declaration

【发布时间】：2020-08-22 12:40:17

【问题描述】：

我对 React Native 和 Detox 还很陌生，并且在调试此问题的根本原因时遇到了一些问题。

对于我们的测试环境，我们首先使用 npm run e2e -- --docker start

e2e 脚本在 package.json 中定义为 "e2e": "ts-node e2e/runner.ts",

我得到的错误是：

@cb/mobile@0.0.1 e2e /Users/rishabhharit/Documents/GitHub/clearbook/packages/cb-mobile
ts-node e2e/runner.ts "--docker" "start"

/Users/rishabhharit/Documents/GitHub/clearbook/packages/cb-mobile/node_modules/react-native/Libraries/Utilities/warnOnce.js:15
const warnedKeys: [string]: boolean = ;
      ^^^^^^^^^^

SyntaxError: Missing initializer in const declaration
    at wrapSafe (internal/modules/cjs/loader.js:891:16)
    at Module._compile (internal/modules/cjs/loader.js:941:27)
    at Module._extensions..js (internal/modules/cjs/loader.js:1011:10)
    at Object.require.extensions.<computed> [as .js] (/Users/rishabhharit/Documents/GitHub/clearbook/packages/cb-mobile/node_modules/ts-node/src/index.ts:807:44)
    at Module.load (internal/modules/cjs/loader.js:822:32)
    at Function.Module._load (internal/modules/cjs/loader.js:730:14)
    at Module.require (internal/modules/cjs/loader.js:864:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/Users/rishabhharit/Documents/GitHub/clearbook/packages/cb-mobile/node_modules/react-native/Libraries/react-native/react-native-implementation.js:14:18)
    at Module._compile (internal/modules/cjs/loader.js:971:30)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @cb/mobile@0.0.1 e2e: `ts-node e2e/runner.ts "--docker" "start"`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the @cb/mobile@0.0.1 e2e script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/rishabhharit/.npm/_logs/2020-05-07T08_58_41_483Z-debug.log

[2020-05-07T08_58_41_483Z-debug.log](https://github.com/wix/Detox/files/4591898/2020-05-07T08_58_41_483Z-debug.log)

runner.ts.zip

现在我不确定在哪里看。将根据要求提供更多信息。

【参考方案1】：

这个答案帮助了我https://***.com/a/57254546。 只需将此行添加到e2e/config.json：

"preset": "react-native"