For CI use config that disables code signing.

.github/workflows/ci.yml

@@ -18,4 +18,4 @@ jobs:
         env:
           scheme: MidiKeys
         run: |
-          xcodebuild build -scheme "$scheme" -workspace MidiKeys.xcworkspace -allowProvisioningUpdates
+          xcodebuild build -scheme "$scheme" -workspace MidiKeys.xcworkspace -xcconfig ci.xcconfig -allowProvisioningUpdates

MidiKeys.xcodeproj/project.pbxproj

@@ -52,6 +52,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		022368EA256B22790087FB13 /* ci.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = ci.xcconfig; sourceTree = SOURCE_ROOT; };
 		027038902353CCE20042A6C3 /* ReadMe.rtf */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.rtf; path = ReadMe.rtf; sourceTree = SOURCE_ROOT; };
 		02D210DC2309F20A007F7B5E /* MidiKeys.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = MidiKeys.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		02D210F12309F2E7007F7B5E /* CTGradient.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CTGradient.m; sourceTree = "<group>"; };
@@ -200,6 +201,7 @@
 				02D211552309FEA8007F7B5E /* Assets.xcassets */,
 				02D211582309FEA8007F7B5E /* dsa_pub.pem */,
 				02D2115A2309FEA8007F7B5E /* KeyMaps.plist */,
+				022368EA256B22790087FB13 /* ci.xcconfig */,
 			);
 			path = Resources;
 			sourceTree = "<group>";

ci.xcconfig

@@ -0,0 +1,16 @@
+//
+//  ci.xcconfig
+//  MidiKeys
+//
+//  Created by Chris Reed on 11/22/20.
+//  Copyright © 2020 beatimprint LLC.
+//
+
+// Change code signing identity so we don't have to deal with certificates in CI.
+//CODE_SIGN_IDENTITY = Apple Development
+
+
+CODE_SIGN_STYLE = Manual
+CODE_SIGN_IDENTITY =
+DEVELOPMENT_TEAM =
+PROVISIONING_PROFILE_SPECIFIER =