# ios各種debug問題

* 報錯
Could not build Objective-C module '．．．‘
From:
https://stackoverflow.com/questions/38076495/could-not-build-objective-c-module-jsqmessagesviewcontroller

* 報錯
error Failed to build iOS project. We ran "xcodebuild" command but it exited with error code 65. To debug build logs further, consider building your app with Xcode.app
From:
https://github.com/facebook/react-native/issues/24450

     react-native start --reset-cache
     rm -rf node_modules/
     rm -rf package-lock.json 
     cd ios
     pod deintegrate
     cd ..
     rm -rf ios/Podfile.lock 
     npm install
     npm audit fix
     react-native link
     cd ios
     pod install
     cd ..
     react-native run-ios

* 報錯
“xcodebuild” command but it exited with error code 65
去iOS 重新跑pod install
[參考](https://github.com/facebook/react-native/issues/25240)

* 報錯 library not found for -
libary未連接成功
到Xcode Targets中找build Settings
改Search paths->Libary Search Paths 裡面的參數
增加需要的套件
[參考](https://blog.csdn.net/liujia216/article/details/53112709)

* 報錯
error: Multiple commands produce '/Users/macmini/Library/Developer/Xcode/DerivedData/merchant_app-cjlrrzqmbkpuznfswahryafzskjh/Build/Products/Debug-iphonesimulator/merchant_app.app/EvilIcons.ttf':
去Xcode->Targets->Build Phases->Copy Bundle Resources 刪除多餘的參考字體
並非去[CP]Copy Bundle Resource一個一個刪除（每一次build完會再出現）

* Error： Command /bin/sh failed with exit code 2
刪除/Users/macmini/Library/Developer/Xcode/DerivedData/
裡面的資料
Shift-Alt-Cmd-K clean Xcode project

* Error：ld: warning: directory not found for option '-L-LPods/Target Support Files'
重新pod install
報錯 找不到字體
iOS中每個字體有自己的Familyname 需要使用font book裡面的名字
不能自己改 不然會找不到

* 報錯main.jsbundle does not exist.
[參考](
https://stackoverflow.com/questions/49505446/main-jsbundle-does-not-exist-this-must-be-a-bug-with-echo-react-native
)