macOS Catalina, Microsoft Teams, and Virtual Webcam (EpocCamHD)

How to get EpocCamHD (or other virtual cameras) working with Teams on macOS

First, how I got started down the right path:

• Running teams from the Terminal gives more information:

• Cd /Applications/Microsoft Teams.app/Contents/MacOS

• .\Teams

• Find error that:

• /Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/EpocCamPlugIn: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/EpocCamPlugIn) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs

• /Library/CoreMediaIO/Plug-Ins/DAL/EpocCamPlugIn.plugin/Contents/MacOS/    EpocCamPlugIn: stat() failed with errno=1

Remove the code signing from the app and its helper and then it will work
****NOTE: This IS removing a security check so proceed at your own risk

• Open terminal with an administrative account then run these three commands separately

• sudo codesign --remove-signature /Applications/Microsoft\ Teams.app

• sudo codesign --remove-signature /Applications/Microsoft\ Teams.app/Contents/MacOS/Teams

• sudo codesign --remove-signature /Applications/Microsoft Teams.app/Contents/Frameworks/Microsoft\ Teams\ Helper.app