Laya踩坑002_Mac编译后报错file://跨域问题

Posted 2023-04-16

参考技术A 补充更新：

后来发现其实不需要那么麻烦，这个命令更靠谱：

open /Applications/Google\ Chrome.app --args --allow-file-access-from-files

首先是莫名其妙，电脑关机后，项目编译就报错一堆问题。

大意就是不能访问file://的文件（不齐全，我忘了保留截图和报错信息。），报错内容有这么一段： from origin 'null' has been blocked by CORS policy: Cross origin request。（先让我吐槽，然后再说解决方案）

这里真要严重吐槽下Laya的机制：

1. bin目录就不能剥离出去？编译目录和开发目录都不分开？混着来？在bin目录上踩坑真的是恶心透了！！！恶心透了！！！恶心！！！透了！！！

2. 项目内部的文件，从LayaIde里面看，还被换过层级和名字。如果是u3d、cocos的老用户，呵，懵逼去吧~！捋半天，我的天呐~还可以这样玩？？？（卧槽！）

报错不能获取对应的文件，文件是存在的。

然后查找资料，罗列出来，你们有兴趣自己去深入研究。

http://ask.layabox.com/question/12504 （这里是跟我一样的报错）

https://ask.layabox.com/question/13

https://www.zhihu.com/question/20948649/answer/256887902

前面这3个帖子，只是让你明白，为什么报错。并没有真正的解决方案。

http://ask.layabox.com/question/39289

这个帖子的命令才是真正可以解决问题的。

1. 打开终端

2. 输入下面的命令( Tip：需要替换路径中的 yourname  )

open -n /Applications/Google\ Chrome.app/ --args --disable-web-security  --user-data-dir=/Users/ yourname /MyChromeDevUserData/

注意：

Mac下可使用命令行打开chrome，记住先关闭当前chrome窗口。

网上有些文章--user-data-dir参数后面没有添加文件夹名，是设置不成功的。

这是在mac的根目录在建了一个叫MyChromeDevUserData的文件夹，用于保存关闭安全策略后的用户信息的，名字可以随意取，位置也可以随意放，只要路径是正确的就可以。

发现：

第一次打开chrome有黄色背景色的“--disable-web-security”相关的提示，说明浏览器设置跨域成功。

再次用执行上面的命令行时，不会再有相关提示了，但是还是能跨域的！

Mac(m1) clion编译opencv报错building for macOS-x86_64 but attempting to link with file built for macOS-ar

代码如下：

 

 

具体报错如下：

ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_dnn.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_video.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_datasets.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_videoio.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_objdetect.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_imgcodecs.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_imgproc.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_flann.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_calib3d.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_photo.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64ld: warning: ignoring file /opt/homebrew/opt/opencv@3/lib/libopencv_features2d.3.4.16.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

解决办法：

在cmake中添加编译选项：