Notaization fails

I try to notarize an installer for audioplugins (au and vst3)

Both plugins are signed and according. And the signing is succesfull ( checked with Terminal command "codesign --verify -v"

Same is for the installer, it is signed as well and the signing was succesfully checkt with terminal command "pkgutil --check-signature"

Still the notarization fails with the errormassages "The signature of the binary is invalid." and "The signature does not include a secure timestamp."

How can it be? And what to do against that?

The most common cause of this is that you’re signed the installer package but not signed the code inside the package. In situation like this I recommend that you sign each code item separately, from the inside out. See the following for more details:

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Notaization fails
 
 
Q