格式：【描述】 【截图】 【解决】 【参考】

ios

关键词：EMFILE

【描述】

ERROR Error watching file for changes: EMFILE

{"code":"EMFILE","errno":"EMFILE","syscall":"Error watching file for changes:","filename":null}Error: Error watching file for changes: EMFILE

at _errnoException (util.js:1041:11)at FSEvent.FSWatcher._handle.onchange (fs.js:1359:9)

【截图】

【解决】

升级最新MacOS系统后，需要重新安装一次brew install watchman

或者

需要安装watchman

git clone

cd watchman./autogen.sh./configuremakesudo make install

【参考】

android

关键词：override

【描述】

Native module VectorIconsModule tried to override VectorIconsModule for module name RNVectorIconsModule. If this was your intention, set canOverrideExistingModule=true

【截图】

【解决】

找到MainApplication.java(android/app/src/main/java/com)，里面有有重复的引用，把重复的部分删除就行了

import com.oblador.vectoricons.VectorIconsPackage;// 删除...public class MainApplication extends Application implements ReactApplication {    ...    new VectorIconsPackage(), // 删除}

【参考】

关键词：refs

【描述】

addComponentAsRefTo(...): Only a ReactOwner can have refs. You might be adding a ref to a component that was not created inside a component's render method, or you have multiple copies of React loaded (details:

【截图】

【解决】

    
       this.refs.abcd    // 如果在rander之外使用ref就会报错报错改成：myRefs = {    abcd: null}
     
       {this.myRefs.abcd = abcd}}>this.myRefs.abcd