问题
Xcode 版本12.4
以前都有，现在新建的项目写demo时找不到视频设备 ManyCam。
报错
2021-03-22 16:30:32.856836+0800 FindManyCam[74998:8777536] Error loading /Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO: dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO, 262): no suitable image found. Did find:
/Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/ManyCamVideoDeviceCMIO.plugin/Contents/MacOS/ManyCamVideoDeviceCMIO) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs
原因
Typically, the Hardened Runtime’s library validation prevents an app from loading frameworks, plug-ins, or libraries unless they’re either signed by Apple or signed with the same team ID as the app.
找不到的原因是因为 ManyCam 虚拟摄像头插件的签名和我们的项目的签名不一致，不是在同一个team ID下。所以被阻止加载了。
解决
开启disable-library-validation
image-20210322162904204.png
