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I'm using Xcode 12.2. My sign step looks like this: productsign --sign "$DEVINSTID" "./\$macOSApp$ver.pkg" "./\$macOSApp$ver.pkg.out" When I install on macOS 10.11 I get the error: App_1.2.6.pkg can't be installed because its digital signature is invalid. The package may have been corrupted or tampered with. Get a new copy of the package and try again. Looking back on my last build that worked, looks like the issue started once I upgraded my build machine to Big Sur.
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by rrabien.
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