add identifier field.

tauri/examples/communication/src-tauri/tauri.conf.json

@@ -10,6 +10,7 @@
     },
     "bundle": {
       "active": true,
+      "identifier": "com.example.app",
       "icon": [
         "icons/32x32.png", "icons/128x128.png", "icons/128x128@2x.png", "icons/icon.icns", "icons/icon.ico"
       ]
@@ -30,4 +31,4 @@
       "active": true
     }
   }
-}
+}