diff --git a/sns.xcodeproj/project.pbxproj b/sns.xcodeproj/project.pbxproj
deleted file mode 100644
index 0c77465..0000000
--- a/sns.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,132 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 46;
-	objects = {
-
-/* Begin PBXFileReference section */
-		5D22D6A21AFC4F5A0036DC52 /* create.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = create.sns.sh; sourceTree = "<group>"; };
-		5D22D6A31AFC4F5A0036DC52 /* delete.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = delete.sns.sh; sourceTree = "<group>"; };
-		5D22D6A41AFC4F5A0036DC52 /* edit.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = edit.sns.sh; sourceTree = "<group>"; };
-		5D22D6A51AFC4F5A0036DC52 /* help.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = help.sns.sh; sourceTree = "<group>"; };
-		5D22D6A71AFC4F5A0036DC52 /* list.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = list.sns.sh; sourceTree = "<group>"; };
-		5D22D6A81AFC4F5A0036DC52 /* p_header.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = p_header.sh; sourceTree = "<group>"; };
-		5D22D6A91AFC4F5A0036DC52 /* pause.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = pause.sns.sh; sourceTree = "<group>"; };
-		5D22D6AA1AFC4F5A0036DC52 /* print.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = print.sns.sh; sourceTree = "<group>"; };
-		5D22D6AB1AFC4F5A0036DC52 /* init_store.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = init_store.sns.sh; sourceTree = "<group>"; };
-		5D22D6AD1AFC4F5A0036DC52 /* stage1.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = stage1.sns.sh; sourceTree = "<group>"; };
-		5D22D6AE1AFC4F5A0036DC52 /* stage2.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = stage2.sns.sh; sourceTree = "<group>"; };
-		5D22D6AF1AFC4F5A0036DC52 /* stage3.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = stage3.sns.sh; sourceTree = "<group>"; };
-		5D22D6B01AFC5B100036DC52 /* libencryption.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = libencryption.sns.sh; sourceTree = "<group>"; };
-		5D75D24F1C5F13DF001E7B33 /* verify_store.sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = verify_store.sns.sh; sourceTree = "<group>"; };
-		5D7E611F1AB74D33001D49B9 /* build.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = build.sh; sourceTree = "<group>"; };
-		5D7E91FB1B27FB620030B30D /* header.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = header.sh; sourceTree = "<group>"; };
-		5DE839831AB9DACE006CB4F6 /* sns.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = sns.sh; sourceTree = "<group>"; };
-		5DE839881ABA04DD006CB4F6 /* errors.ref */ = {isa = PBXFileReference; lastKnownFileType = text; path = errors.ref; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXGroup section */
-		5D22D6A01AFC4F5A0036DC52 /* src */ = {
-			isa = PBXGroup;
-			children = (
-				5D22D6A11AFC4F5A0036DC52 /* includes */,
-				5D22D6AC1AFC4F5A0036DC52 /* main */,
-			);
-			path = src;
-			sourceTree = "<group>";
-		};
-		5D22D6A11AFC4F5A0036DC52 /* includes */ = {
-			isa = PBXGroup;
-			children = (
-				5D22D6A21AFC4F5A0036DC52 /* create.sns.sh */,
-				5D22D6A31AFC4F5A0036DC52 /* delete.sns.sh */,
-				5D22D6A41AFC4F5A0036DC52 /* edit.sns.sh */,
-				5D22D6A51AFC4F5A0036DC52 /* help.sns.sh */,
-				5D22D6A71AFC4F5A0036DC52 /* list.sns.sh */,
-				5D22D6A81AFC4F5A0036DC52 /* p_header.sh */,
-				5D22D6A91AFC4F5A0036DC52 /* pause.sns.sh */,
-				5D22D6AA1AFC4F5A0036DC52 /* print.sns.sh */,
-				5D22D6AB1AFC4F5A0036DC52 /* init_store.sns.sh */,
-				5D22D6B01AFC5B100036DC52 /* libencryption.sns.sh */,
-				5D75D24F1C5F13DF001E7B33 /* verify_store.sns.sh */,
-			);
-			path = includes;
-			sourceTree = "<group>";
-		};
-		5D22D6AC1AFC4F5A0036DC52 /* main */ = {
-			isa = PBXGroup;
-			children = (
-				5D22D6AD1AFC4F5A0036DC52 /* stage1.sns.sh */,
-				5D22D6AE1AFC4F5A0036DC52 /* stage2.sns.sh */,
-				5D22D6AF1AFC4F5A0036DC52 /* stage3.sns.sh */,
-			);
-			path = main;
-			sourceTree = "<group>";
-		};
-		5D7E61181AB74D11001D49B9 = {
-			isa = PBXGroup;
-			children = (
-				5D22D6A01AFC4F5A0036DC52 /* src */,
-				5DE839881ABA04DD006CB4F6 /* errors.ref */,
-				5DE839831AB9DACE006CB4F6 /* sns.sh */,
-				5D7E611F1AB74D33001D49B9 /* build.sh */,
-				5D7E91FB1B27FB620030B30D /* header.sh */,
-			);
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXProject section */
-		5D7E61191AB74D11001D49B9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastUpgradeCheck = 0700;
-			};
-			buildConfigurationList = 5D7E611C1AB74D11001D49B9 /* Build configuration list for PBXProject "sns" */;
-			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-			);
-			mainGroup = 5D7E61181AB74D11001D49B9;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-			);
-		};
-/* End PBXProject section */
-
-/* Begin XCBuildConfiguration section */
-		5D7E611D1AB74D11001D49B9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ENABLE_TESTABILITY = YES;
-				ONLY_ACTIVE_ARCH = YES;
-			};
-			name = Debug;
-		};
-		5D7E611E1AB74D11001D49B9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		5D7E611C1AB74D11001D49B9 /* Build configuration list for PBXProject "sns" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				5D7E611D1AB74D11001D49B9 /* Debug */,
-				5D7E611E1AB74D11001D49B9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 5D7E61191AB74D11001D49B9 /* Project object */;
-}
diff --git a/sns.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/sns.xcodeproj/project.xcworkspace/contents.xcworkspacedata
deleted file mode 100644
index dccdea5..0000000
--- a/sns.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "self:sns.xcodeproj">
-   </FileRef>
-</Workspace>
diff --git a/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/UserInterfaceState.xcuserstate b/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index df0db65..0000000
Binary files a/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/WorkspaceSettings.xcsettings b/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/WorkspaceSettings.xcsettings
deleted file mode 100644
index 659c876..0000000
--- a/sns.xcodeproj/project.xcworkspace/xcuserdata/xilmwa.xcuserdatad/WorkspaceSettings.xcsettings
+++ /dev/null
@@ -1,10 +0,0 @@
-<?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>HasAskedToTakeAutomaticSnapshotBeforeSignificantChanges</key>
-	<true/>
-	<key>SnapshotAutomaticallyBeforeSignificantChanges</key>
-	<true/>
-</dict>
-</plist>