I received an app from 3rd party and need to sign it with my cert, but after following the work flow I get errors in iResign. Create a Distribution Certificate Create an Apple Developer Application Identifier Create and Install a Push SSL Certificate Create App Distribution Certificate (1 for all Ramco Apps) Create an Apple Developer Provisioning Profile Sign the App with iResign Upload to Workspace One environment I get this error when I run iResign; /var/folders/qd/z7m3dzs52rddmlvcpm_ghyl00000gn/T/com.appulize.iresign/Payload/RamcoEFBiOS.app: replacing existing signature Warning: unable to build chain to self-signed root for signer "iPhone Distribution: PHI, INC." /var/folders/qd/z7m3dzs52rddmlvcpm_ghyl00000gn/T/com.appulize.iresign/Payload/RamcoEFBiOS.app: errSecInternalComponent /var/folders/qd/z7m3dzs52rddmlvcpm_ghyl00000gn/T/com.appulize.iresign/Payload/RamcoEFBiOS.app: invalid Info.plist (plist or signature have been modified) In architecture: arm64 I've tried to find answers on these forms but could not find anything to help me. If anyone has some insight on this please let me know.