Fixes issue #47, updates code to latest syntax, build for iOS 11
diff --git a/OpenWhisk.xcodeproj/project.pbxproj b/OpenWhisk.xcodeproj/project.pbxproj
index f7747aa..e956ac2 100644
--- a/OpenWhisk.xcodeproj/project.pbxproj
+++ b/OpenWhisk.xcodeproj/project.pbxproj
@@ -205,16 +205,16 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0800;
+				LastUpgradeCheck = 0930;
 				ORGANIZATIONNAME = IBM;
 				TargetAttributes = {
 					D6E3E6351C72592300843E16 = {
 						CreatedOnToolsVersion = 7.2.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 0930;
 					};
 					D6E3E63F1C72592300843E16 = {
 						CreatedOnToolsVersion = 7.2.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 0930;
 					};
 					D6F56ADE1C76471B00F047B6 = {
 						CreatedOnToolsVersion = 7.2.1;
@@ -317,14 +317,22 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -348,7 +356,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -367,14 +375,22 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -392,7 +408,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
@@ -414,13 +430,14 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = OpenWhisk/Info_iOS.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.openwhisk.OpenWhisk;
 				PRODUCT_NAME = OpenWhisk;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -435,12 +452,13 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = OpenWhisk/Info_iOS.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = org.openwhisk.OpenWhisk;
 				PRODUCT_NAME = OpenWhisk;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -451,7 +469,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.ibm.mobile.openwhisk.OpenWhiskTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -462,7 +481,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.ibm.mobile.openwhisk.OpenWhiskTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -484,7 +504,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 4;
-				WATCHOS_DEPLOYMENT_TARGET = 3.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Debug;
 		};
@@ -506,7 +526,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 4;
-				WATCHOS_DEPLOYMENT_TARGET = 3.0;
+				WATCHOS_DEPLOYMENT_TARGET = 4.0;
 			};
 			name = Release;
 		};
diff --git a/OpenWhisk.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/OpenWhisk.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/OpenWhisk.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk Tests.xcscheme b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk Tests.xcscheme
index 8d780eb..f88496c 100644
--- a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk Tests.xcscheme
+++ b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk Tests.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0930"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk iOS.xcscheme b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk iOS.xcscheme
index a032da2..ed082fb 100644
--- a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk iOS.xcscheme
+++ b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0930"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk watchOS.xcscheme b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk watchOS.xcscheme
index a75294a..391f125 100644
--- a/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk watchOS.xcscheme
+++ b/OpenWhisk.xcodeproj/xcshareddata/xcschemes/OpenWhisk watchOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0930"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/OpenWhisk/OpenWhiskButton.swift b/OpenWhisk/OpenWhiskButton.swift
index 8de1778..98436e5 100644
--- a/OpenWhisk/OpenWhiskButton.swift
+++ b/OpenWhisk/OpenWhiskButton.swift
@@ -60,7 +60,7 @@
     public var actionButtonCallback: ((Dictionary<String,AnyObject>?, WhiskError?) -> Void)?
 
 
-    func buttonPressed() {
+    @objc func buttonPressed() {
         invokeAction(parameters: nil, actionCallback: actionButtonCallback)
     }
 
diff --git a/OpenWhisk/OpenWhiskSDK.swift b/OpenWhisk/OpenWhiskSDK.swift
index 4ce7e4b..58741b1 100644
--- a/OpenWhisk/OpenWhiskSDK.swift
+++ b/OpenWhisk/OpenWhiskSDK.swift
@@ -88,7 +88,7 @@
         set {
             if let url = newValue {
 
-                let c = url.characters.last
+                let c = url.last
 
                 let separater =  c == "/" ? "" : "/"
 
@@ -214,12 +214,12 @@
 
         var namespaceStr = namespace
 
-        if namespace.characters.count == 0 {
+        if namespace.count == 0 {
             namespaceStr = "_"
         }
 
         if let package = package {
-            if package.characters.count == 0 {
+            if package.count == 0 {
                 syncName = syncName + namespaceStr+"/"+typeStr+"/"+name
             } else {
                 syncName = syncName + namespaceStr+"/"+typeStr+"/"+package+"/"+name
@@ -430,11 +430,11 @@
         var name = ""
         var doesSpecifyNamespace = false
 
-        if qName.characters.first == "/" {
+        if qName.first == "/" {
             doesSpecifyNamespace = true
         }
 
-        let pathParts = qName.characters.split { $0 == "/" }.map(String.init)
+        let pathParts = qName.split { $0 == "/" }.map(String.init)
 
         if doesSpecifyNamespace == true {
             if pathParts.count == 2 {
diff --git a/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/project.pbxproj b/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/project.pbxproj
index e49a93c..466fc87 100644
--- a/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/project.pbxproj
+++ b/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/project.pbxproj
@@ -147,13 +147,13 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0720;
-				LastUpgradeCheck = 0800;
+				LastUpgradeCheck = 0930;
 				ORGANIZATIONNAME = IBM;
 				TargetAttributes = {
 					D65844411C727BBC001581F3 = {
 						CreatedOnToolsVersion = 7.2.1;
 						DevelopmentTeam = 76CMF53Q35;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 0930;
 					};
 				};
 			};
@@ -195,13 +195,16 @@
 			files = (
 			);
 			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
 			);
 			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-OpenWhiskStarterApp-checkManifestLockResult.txt",
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
 			showEnvVarsInLog = 0;
 		};
 		17B39CA85AFF9440A7860D2E /* [CP] Embed Pods Frameworks */ = {
@@ -210,9 +213,12 @@
 			files = (
 			);
 			inputPaths = (
+				"${SRCROOT}/Pods/Target Support Files/Pods-OpenWhiskStarterApp/Pods-OpenWhiskStarterApp-frameworks.sh",
+				"${BUILT_PRODUCTS_DIR}/OpenWhisk/OpenWhisk.framework",
 			);
 			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OpenWhisk.framework",
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
@@ -281,14 +287,22 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -311,7 +325,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -328,14 +342,22 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -352,7 +374,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
@@ -373,10 +395,12 @@
 					"$(PROJECT_DIR)",
 				);
 				INFOPLIST_FILE = OpenWhiskStarterApp/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.ibm.mobile.openwhisk.OpenWhiskStarterApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -392,10 +416,12 @@
 					"$(PROJECT_DIR)",
 				);
 				INFOPLIST_FILE = OpenWhiskStarterApp/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.ibm.mobile.openwhisk.OpenWhiskStarterApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/xcshareddata/xcschemes/OpenWhiskStarterApp.xcscheme b/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/xcshareddata/xcschemes/OpenWhiskStarterApp.xcscheme
index b5ff414..ce2a76b 100644
--- a/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/xcshareddata/xcschemes/OpenWhiskStarterApp.xcscheme
+++ b/mobile/iOS/starterapp/OpenWhiskStarterApp.xcodeproj/xcshareddata/xcschemes/OpenWhiskStarterApp.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
+   LastUpgradeVersion = "0930"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/mobile/iOS/starterapp/OpenWhiskStarterApp/ResultSetTableController.swift b/mobile/iOS/starterapp/OpenWhiskStarterApp/ResultSetTableController.swift
index ea47f5c..fae8f53 100644
--- a/mobile/iOS/starterapp/OpenWhiskStarterApp/ResultSetTableController.swift
+++ b/mobile/iOS/starterapp/OpenWhiskStarterApp/ResultSetTableController.swift
@@ -66,7 +66,7 @@
                                 options: JSONSerialization.WritingOptions(rawValue: 0))
                             let theJSONText = NSString(data: theJSONData,
                                 encoding: String.Encoding.ascii.rawValue)
-                            values.append(theJSONText as! String)
+                            values.append(theJSONText! as String)
                             isComplex.append(true)
                         } catch {
                             print("Error converting value to JSON")
diff --git a/mobile/iOS/starterapp/OpenWhiskStarterApp/ViewController.swift b/mobile/iOS/starterapp/OpenWhiskStarterApp/ViewController.swift
index 82205b4..bf289c2 100644
--- a/mobile/iOS/starterapp/OpenWhiskStarterApp/ViewController.swift
+++ b/mobile/iOS/starterapp/OpenWhiskStarterApp/ViewController.swift
@@ -84,7 +84,7 @@
             } else if let reply = reply {
                 let str = "\(reply)"
                 print("reply: \(str)")
-                self.statusLabel.text = "Action \(self.MyNamespace)/\(self.MyWhiskAction) returned \(str.characters.count) characters"
+                self.statusLabel.text = "Action \(self.MyNamespace)/\(self.MyWhiskAction) returned \(str.count) characters"
                 if let result = reply["result"] as? [String:AnyObject] {
                     self.displayOutput(reply: result)
                 }