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Hi, I'm having some trouble running a shell script that worked before I updated the Xcode and my MacOS. This is probably connected to the command line tools which were updated with these upgrades. I can't switch to an older version of the command line tools to verify this theory tho... The script uses CryptoKit to decrypt some data which was encrypted using a SymmetricKey. The script: #!/bin/bash # # DecryptScript.sh # # This script decrypts encrypted data using a symmetric key. # Check for the correct number of arguments if [ "$#" -ne 2 ]; then echo "Usage: $0 <encrypted_file_path> <decrypted_file_path>" exit 1 fi # Get the input arguments encryptedFilePath="$1" decryptedFilePath="$2" # Find the path to the script's directory scriptDir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" # Check if the symmetric key file exists in the same directory symmetricKeyPath="$scriptDir/.sim.key" if [ ! -f "$symmetricKeyPath" ]; then echo "SymmetricKey file was not found in the same directory as the script." exit 1 fi # Decrypt the data swift - <<EOF import Foundation import CryptoKit let symmetricKeyURL = URL(fileURLWithPath: "$symmetricKeyPath") let encryptedDataURL = URL(fileURLWithPath: "$encryptedFilePath") let decryptedDataURL = URL(fileURLWithPath: "$decryptedFilePath") guard let symmetricKeyData = try? Data(contentsOf: symmetricKeyURL) else { fatalError("Failed to read symmetric key data") } guard let encryptedData = try? Data(contentsOf: encryptedDataURL) else { fatalError("Failed to read encrypted data") } do { // Decrypt the data using AES-GCM let decryptionKey = SymmetricKey(data: symmetricKeyData) let sealedBox = try AES.GCM.SealedBox(combined: encryptedData) let decryptedData = try AES.GCM.open(sealedBox, using: decryptionKey) // Write the decrypted data to a file try decryptedData.write(to: decryptedDataURL) print("Decryption successful. Decrypted file saved at \(decryptedDataURL)") } catch { print("Decryption failed: \(error.localizedDescription)") } EOF The code in the project which encrypts the data and retrieves the key: func encryptSymmetric(data: Data, password: String) throws -> (Data, Data) { let key = SymmetricKey(size: .bits256) guard let cipher = try? AES.GCM.seal(data, using: key).combined else { throw SomeCustomError.failedToEncryptData } let keyData = key.withUnsafeBytes { Data($0) } return (cipher, keyData) } The error I'm presented with in the terminal is JIT session error: Symbols not found: [ _$s9CryptoKit3AESO3GCMO4open_5using10Foundation4DataVAE9SealedBoxV_AA12SymmetricKeyVtKFZ, _$s9CryptoKit12SymmetricKeyVMa, _$s9CryptoKit3AESO3GCMO9SealedBoxV8combinedAGx_tKc10Foundation12DataProtocolRzlufC, _$s9CryptoKit12SymmetricKeyV4dataACx_tc10Foundation15ContiguousBytesRzlufC, _$s9CryptoKit3AESO3GCMO9SealedBoxVMa ] Failed to materialize symbols: { (main, { _$s4main16encryptedDataURL10Foundation0D0Vvp, _$s4main15symmetricKeyURL10Foundation0D0Vvp, _$s10Foundation4DataVAcA0B8ProtocolAAWL, _$s4main16decryptedDataURL10Foundation0D0Vvp, _$sSa12_endMutationyyF, _$ss5print_9separator10terminatoryypd_S2StFfA0_, _$ss27_finalizeUninitializedArrayySayxGABnlF, _main, _$s10Foundation4DataV15_RepresentationOWOe, _$sSSWOh, _$ss5print_9separator10terminatoryypd_S2StFfA1_, _$s10Foundation4DataV5write2to7optionsyAA3URLV_So20NSDataWritingOptionsVtKFfA0_, ___swift_allocate_value_buffer, __swift_FORCE_LOAD_$_swiftFoundation_$_main, _$s10Foundation4DataV10contentsOf7optionsAcA3URLVh_So20NSDataReadingOptionsVtKcfcfA0_, __swift_FORCE_LOAD_$_swiftXPC_$_main, _$s10Foundation4DataV15_RepresentationOWOy, ___swift_project_value_buffer, _$s10Foundation4DataVAcA0B8ProtocolAAWl, __swift_FORCE_LOAD_$_swiftIOKit_$_main, _$ss26DefaultStringInterpolationVWOh, __swift_FORCE_LOAD_$_swiftCoreFoundation_$_main, _$s10Foundation3URLVACs23CustomStringConvertibleAAWl, __swift_FORCE_LOAD_$_swiftDarwin_$_main, __swift_FORCE_LOAD_$_swiftObjectiveC_$_main, _$s10Foundation3URLVACs23CustomStringConvertibleAAWL, __swift_FORCE_LOAD_$_swiftDispatch_$_main }) } This leads me to believe that linking might not be working properly. I also found this thread where someone had the same issue but with a different framework. NOTE: If I try to decrypt the data in my project, it works without any issues even on Xcode 15. It only fails if I try to run this script which worked before when I had the previous version of command line tools. I even tried updating to Xcode 15.1 beta and its command line tools, without success. Any feedback is appreciated. Thank you.