ionic打包/编译遇到的问题

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一、ionic cordova build android 时遇到的问题:
1.
(node:10647) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: spawn EACCES
提示是gradlew的权限问题:
修改成 777
chmod 777 /Users/wxd/projects/vue/github/vue-objccn/app/platforms/android/gradlew
2.
error: resource android:attr/fontVariationSettings not found.
执行cordova plugin add cordova-android-support-gradle-release --fetch
重新build成功

3.ionic打包缺少config.xml文件

UnhandledPromiseRejectionWarning: Error: ENOENT: no such file or directory,open '.../platforms/android/res/xml/config.xml'

重新添加安卓平台:

(1)ionic cordova platform rm android  移除安卓平台

(2)手动删除目录 platforms,plugins & www

(3)npm i 重新安装npm包

(4)ionic cordova platform add android

(5)ionic cordova build android

4."com.android.builder.dexing.DexArchiveBuilderException"报错

如果module中使用了Java1.8,那你必须也要添加如下代码到你的app gradle中

compileOptions {
        sourceCompatibility 1.8
        targetCompatibility 1.8
    }


二、
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance错误的解决办法
原因:设置的xcode的路径不对
转换xcode路径:
$ sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer/