iOS fix

build.gradle

@@ -166,13 +166,14 @@ project(":ios"){
         def props = new Properties()
         if(vfile.exists()){
             props.load(new FileInputStream(vfile))
+        }else{
+            props['app.id'] = 'io.anuke.mindustry'
+            props['app.version'] = '4.2.1'
+            props['app.mainclass'] = 'io.anuke.mindustry.IOSLauncher'
+            props['app.executable'] = 'IOSLauncher'
+            props['app.name'] = 'Mindustry'
         }
-
-        props['app.id'] = 'io.anuke.mindustry'
-        props['app.version'] = '4.2.1'
-        props['app.mainclass'] = 'io.anuke.mindustry.IOSLauncher'
-        props['app.executable'] = 'IOSLauncher'
-        props['app.name'] = 'Mindustry'
+        
         props['app.build'] = (!props.containsKey("app.build") ? 40 : props['app.build'].toInteger() + 1) + ""
         props.store(vfile.newWriter(), null)
     }