mac xcode 常见配置和使用问题汇总

 vbox中安装mac系统：https://www.cnblogs.com/liming2017/p/7566953.html

 

1.报错：There are no schemes in workspace "。。。"

解决：设置scheme共享

方法：xcode打开后，按照Product->Scheme->Manage Schemes后会出现所有的scheme，需要共享的scheme的勾选右边的shared即可

 

2.Build 文件夹是中间文件的保存地方，如何设置在工程目录下，不放在默认地方：

 

3.xcode 报错Failed to load project at xxxx ,incompatible project version

错误原因：

由于工程是低版本的Xcode建立的，在使用高版本的Xcode打开时会出现编译不了工程。

解决方法：

鼠标右击.xcodeproj文件 —》显示包内容 —》打开project.pbxproj文件，比较以前的版本号进行修改（比如：把objecVersion=50修改objecVersion=48即可打开工程）

 

4.mac上sed -i 执行失败报错

mac上执行就会报错“invalid command code C”，查看mac sed 发现如下：

说白了，就是需要一个中间文件来转换下，比如我们上面的sed命令在mac上可以替换成sed -i  n.tmp s/$old_version/$new_version/g version.txt  ,其实执行这条的时候会生成一个version.txt_n.tmp文件，这个不需要的文件，执行后删除即可。

我们可以采用uname命令来判断当前系统是不是mac，如果"$(uname)" == "Darwin"，就表明是mac/ios系统。

所以完整的同时兼容linux和mac/ios的脚本如下：

if [ "$(uname)" == "Darwin" ];then #ios/mac系统
        echo "this is Mac,use diff sed"
        sed -i n.tmp s/$old_version/$new_verison/g version.txt  #如果不备份，可以只给空，即sed -i  " " s/$old_version/$new_verison/g version.txt ，但是不能省略
        rm *.tmp
    else
        sed -i s/$old_version/$new_version/g version.txt  #linux系统
    fi

 sed -i n.tmp .. 会导致新增一个文件version.txtn.tmp  可以把n.tmp换成空，即sed -i  " " s/$old_version/$new_verison/g version.txt ,就不会有新增文件

另一种方法是在mac上安装gun-sed:

export xsed=sed
if [ "$(uname)" == "Darwin" ];then #mac系统
    echo "alias sed to gsed for Mac, hint: brew install gnu-sed"
    export xsed=gsed
fi

#后面使用xsed代替sed执行替换动作，

xsed -i s/$old_version/$new_version/g version.txt

 

3.mac 如何命令行打开.xcodeproj或者.xcodeworkspace

open $name.xcodeproj

或者 open $name.xcodeworkspace

macdeMacBook-Pro:public mac$ open --help
 
open: unrecognized option `--help'
 
Usage: open [-e] [-t] [-f] [-W] [-R] [-n] [-g] [-h] [-s ][-b ] [-a ] [filenames] [--args arguments]
 
Help: Open opens files from a shell.
 
      By default, opens each file using the default application for that file.
 
      If the file is in the form of a URL, the file will be opened as a URL.
 
Options:
      -a                Opens with the specified application.
 
      -b                Opens with the specified application bundle identifier.
 
      -e                Opens with TextEdit.
 
      -t                Opens with default text editor.
 
      -f                Reads input from standard input and opens with TextEdit.
 
      -F  --fresh      Launches the app fresh, that is, without restoring windows. Saved persistent state is lost, excluding Untitled documents.
 
      -R, --reveal      Selects in the Finder instead of opening.
 
      -W, --wait-apps  Blocks until the used applications are closed (even if they were already running).
 
          --args        All remaining arguments are passed in argv to the application's main() function instead of opened.
 
      -n, --new        Open a new instance of the application even if one is already running.
 
      -j, --hide        Launches the app hidden.
 
      -g, --background  Does not bring the application to the foreground.
 
      -h, --header      Searches header file locations for headers matching the given filenames, and opens them.
 
      -s                For -h, the SDK to use; if supplied, only SDKs whose names contain the argument value are searched.
 
                        Otherwise the highest versioned SDK in each platform is used.

 

4.