Command ValidateEmbeddedBinary failed with a nonzero exit code

Question

I ran into this error after upgrading xCode to version 12.4

Build fails with the following message:

"Command ValidateEmbeddedBinary failed with a nonzero exit code"

This error concerns the validation of the extension to the macOS application (in this case, NetworkExtention)

Answer 1

After more than 2 days of research, I found out that the error was caused by the following code in my Info.plist:

<key>CFBundleSupportedPlatforms</key>
<string>MacOSX</string>

After deleting this piece of code, the error disappeared. I hope this helps someone avoid wasting time.)