diff --git a/OpenSimulator.app/Contents/Info.plist b/OpenSimulator.app/Contents/Info.plist
index 11979a4..b922a08 100644
--- a/OpenSimulator.app/Contents/Info.plist
+++ b/OpenSimulator.app/Contents/Info.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
 	<key>BuildMachineOSBuild</key>
-	<string>18A391</string>
+	<string>18G1012</string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
 	<key>CFBundleExecutable</key>
@@ -31,17 +31,17 @@
 	<key>DTCompiler</key>
 	<string>com.apple.compilers.llvm.clang.1_0</string>
 	<key>DTPlatformBuild</key>
-	<string>10A255</string>
+	<string>11B500</string>
 	<key>DTPlatformVersion</key>
 	<string>GM</string>
 	<key>DTSDKBuild</key>
-	<string>18A384</string>
+	<string>19B89</string>
 	<key>DTSDKName</key>
-	<string>macosx10.14</string>
+	<string>macosx10.15</string>
 	<key>DTXcode</key>
-	<string>1000</string>
+	<string>1120</string>
 	<key>DTXcodeBuild</key>
-	<string>10A255</string>
+	<string>11B500</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>10.13</string>
 	<key>LSUIElement</key>
diff --git a/OpenSimulator.app/Contents/MacOS/OpenSimulator b/OpenSimulator.app/Contents/MacOS/OpenSimulator
index f524a98..35ea105 100755
Binary files a/OpenSimulator.app/Contents/MacOS/OpenSimulator and b/OpenSimulator.app/Contents/MacOS/OpenSimulator differ
diff --git a/OpenSimulator.app/Contents/Resources/Assets.car b/OpenSimulator.app/Contents/Resources/Assets.car
index a0e15a0..916eeb7 100644
Binary files a/OpenSimulator.app/Contents/Resources/Assets.car and b/OpenSimulator.app/Contents/Resources/Assets.car differ
diff --git a/OpenSimulator.app/Contents/_CodeSignature/CodeResources b/OpenSimulator.app/Contents/_CodeSignature/CodeResources
index 009cc4c..1820f5f 100644
--- a/OpenSimulator.app/Contents/_CodeSignature/CodeResources
+++ b/OpenSimulator.app/Contents/_CodeSignature/CodeResources
@@ -10,7 +10,7 @@
 		</data>
 		<key>Resources/Assets.car</key>
 		<data>
-		TI3/tmZ3tw9/fwmn4oSLdJ1aqqI=
+		JnbGBBKbPObW3Zu1nhcMiAROz6c=
 		</data>
 		<key>Resources/Base.lproj/MainMenu.nib</key>
 		<data>
@@ -30,7 +30,7 @@
 		<dict>
 			<key>hash2</key>
 			<data>
-			VHjOLtjdzQQ+rBHp+sR4xpR5ZETM0gSdtWSb2WdheYA=
+			LGX9WVSv2uDbBhSjMkQWkhfZiIYVvscMH0Cx2HZknfw=
 			</data>
 		</dict>
 		<key>Resources/Base.lproj/MainMenu.nib</key>
diff --git a/OpenSimulator.xcodeproj/project.xcworkspace/xcuserdata/lizhi.xcuserdatad/UserInterfaceState.xcuserstate b/OpenSimulator.xcodeproj/project.xcworkspace/xcuserdata/lizhi.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..6a650a7
Binary files /dev/null and b/OpenSimulator.xcodeproj/project.xcworkspace/xcuserdata/lizhi.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..d85a922
--- /dev/null
+++ b/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   uuid = "53577366-7FB5-4C90-A90F-A8191F3A2FFA"
+   type = "1"
+   version = "2.0">
+</Bucket>
diff --git a/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcschemes/xcschememanagement.plist b/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..8bddc4e
--- /dev/null
+++ b/OpenSimulator.xcodeproj/xcuserdata/lizhi.xcuserdatad/xcschemes/xcschememanagement.plist
@@ -0,0 +1,14 @@
+<?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>SchemeUserState</key>
+	<dict>
+		<key>OpenSimulator.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/OpenSimulator/AppDelegate.m b/OpenSimulator/AppDelegate.m
index 89de411..14427f0 100644
--- a/OpenSimulator/AppDelegate.m
+++ b/OpenSimulator/AppDelegate.m
@@ -128,6 +128,23 @@ -(NSArray *)installedAppsOnSimulatorWithWindowName:(NSString *)windowName{
     NSString * platform = [[NSString stringWithFormat:@"%@.%@",system,[windowName componentsSeparatedByString:@" "].lastObject] stringByReplacingOccurrencesOfString:@"." withString:@"-"];
     NSString * versionKey = [NSString stringWithFormat:@"com.apple.CoreSimulator.SimRuntime.%@",platform];
     NSDictionary * simDictionary = DefaultDevices[versionKey];
+    if (simDictionary == nil) {
+        NSLog(@"Can't find %@", versionKey);
+        // 修正一下最小的子版本号有时候不在配置中的情况
+        NSArray *platformParts = [platform componentsSeparatedByString:@"-"];
+        NSMutableString *platform2 = [[NSMutableString alloc] initWithCapacity:platform.length];
+        if (platformParts.count > 0) {
+            for (NSUInteger i=0; i<platformParts.count-1; i++) {
+                [platform2 appendString:platformParts[i]];
+                if (i != platformParts.count-2) {
+                    [platform2 appendString:@"-"];
+                }
+            }
+            platform = platform2;
+        }
+        versionKey = [NSString stringWithFormat:@"com.apple.CoreSimulator.SimRuntime.%@",platform];
+        simDictionary = DefaultDevices[versionKey];
+    }
     //?
     NSString *deviceName;
     if ([windowName containsString:@" — "]) {