Errong Leng

React Native 使用 TypeScript + Hermes 时 Android Release 构建报错解决方案 如果你把 React Native 项目的入口文件从 index.js 改成了 index.ts ，然后在构建 Android Release 版本时失败，这篇文章可以帮你解决。 常见的报错包括： Task ':app:createBundleReleaseJsAndAssets' property 'entryFile' specifies file 'index.js' which doesn't exist. 或者： java.lang.OutOfMemoryError: Metaspace Execution failed for task ':react-native-xxx:lintVitalAnalyzeRelease' 这通常是由于入口文件未正确配置，以及 Gradle 内存不足导致的。下面是完整修复步骤。 1. 修复入口文件路径错误 React Native 默认查找 index.js ，如果你使用 TypeScript，需要告诉 Gradle 使用 index.ts 。 打开 android/app/build.gradle ，在 react {} 配置中加入： react { entryFile = file("../../index.ts") } 同时确认 package.json 中的入口文件： "main": "index.ts" 并在 metro.config.js 中支持 TypeScript： resolver: { sourceExts: ["js", "json", "ts", "tsx"] } 2. 解决 Gradle Metaspace 内存不足 Android 在 Release 构建时会运行 Lint 分析 React Native 库的 Kotlin 文件，默认内存太小会导致崩溃。 编辑 an...

Fixing React Native Android Release Build Errors with TypeScript & Hermes If your React Native Android release build fails after renaming index.js to index.ts , you're not alone. This is one of the most common issues when modernizing a React Native project with TypeScript and Hermes. Here are the two major errors you’ll likely see: Task ':app:createBundleReleaseJsAndAssets' property 'entryFile' specifies file 'index.js' which doesn't exist. And later: java.lang.OutOfMemoryError: Metaspace Execution failed for task ':react-native-xxx:lintVitalAnalyzeRelease' Let’s fix both problems step by step. 1. React Native Can’t Find Your Entry File React Native expects your app’s entry file to be index.js . When you rename it to index.ts , Gradle doesn’t know where to look. Open android/app/build.gradle and add this inside the react {} block: react { entryFile = file("../../index.ts") } Also make sure your package...