离子建立ios命令不起作用

Question

我已经通过教程说明来设置科尔多瓦和离子。我可以在开发中成功运行该应用程序，但在构建ios时会出现此错误。有任何想法吗？尝试更新节点和科尔多瓦。

sudo ionic build ios     

Running 'build:before' gulp task before build 
[11:16:00] Starting 'clean'... 
[11:16:00] Finished 'clean' after 47 ms 
[11:16:00] Starting 'build'... 
[11:16:00] Starting 'sass'... 
[11:16:00] Starting 'html'... 
[11:16:00] Starting 'fonts'... 
[11:16:00] Starting 'scripts'... 
[11:16:00] Finished 'scripts' after 45 ms 
[11:16:00] Finished 'html' after 51 ms 
[11:16:00] Finished 'fonts' after 54 ms 
[11:16:00] Finished 'sass' after 770 ms 
[11:16:07] Finished 'build' after 7.18 s 
[11:16:07] Starting 'build:before'... 
[11:16:07] Finished 'build:before' after 11 μs 

• You're trying to build for ios but don't have the platform  installed yet. 
∆ Installing ios for you. 
Installing cordova-plugin-device 
Installing cordova-plugin-console 
Installing cordova-plugin-whitelist 
Installing cordova-plugin-splashscreen 
Installing cordova-plugin-statusbar 
Installing ionic-plugin-keyboard 
Error: Command failed: /bin/sh -c cordova platform add ios 
Error: Platform ios already added. 

at ChildProcess.exithandler (child_process.js:213:12) 
at emitTwo (events.js:87:13) 
at ChildProcess.emit (events.js:172:7) 
at maybeClose (internal/child_process.js:821:16) 
at Socket.<anonymous> (internal/child_process.js:319:11) 
at emitOne (events.js:77:13) 
at Socket.emit (events.js:169:7) 
at Pipe._onclose (net.js:4 

69:12）

Answer 1

首先，看来你对iOS平台上安装的一些问题，尝试删除它，并把它加回到你的发展空间。

运行命令ionic platform remove ios && ionic platform add ios在尝试为ios构建之前。其次，您需要Mac操作系统来构建ios应用程序，因为它依赖于XCode（本机软件）来构建。

第三，如果你仍然有相同的iussue，那么这可能是由于这里描述的一个bug。 https://github.com/driftyco/ionic-cli/issues/772

尝试sudo npm install -g cordova并重新运行构建。

祝你好运。