I am stuck in the splash screen

my logcat:
08-28 10:58:24.004 7814-7820/? D/dalvikvm: Debugger has detached; object registry had 1 entries
08-28 10:58:24.024 7814-7814/? I/CordovaLog: Changing log level to DEBUG(3)
08-28 10:58:24.024 7814-7814/? I/CordovaActivity: Apache Cordova native platform version 6.3.0 is starting
08-28 10:58:24.024 7814-7814/? D/CordovaActivity: CordovaActivity.onCreate()
08-28 10:58:24.024 7814-7814/? I/dalvikvm: Could not find method android.app.Activity.checkSelfPermission, referenced from method org.apache.cordova.CordovaInterfaceImpl.hasPermission
08-28 10:58:24.024 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 33: Landroid/app/Activity;.checkSelfPermission (Ljava/lang/String;)I
08-28 10:58:24.024 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x0009
08-28 10:58:24.034 7814-7814/? I/dalvikvm: Could not find method android.app.Activity.requestPermissions, referenced from method org.apache.cordova.CordovaInterfaceImpl.requestPermissions
08-28 10:58:24.034 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 79: Landroid/app/Activity;.requestPermissions ([Ljava/lang/String;I)V
08-28 10:58:24.034 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x000a
08-28 10:58:24.044 7814-7814/? V/WebViewChromium: Binding Chromium to the background looper Looper (main, tid 1) {9d068508}
08-28 10:58:24.054 7814-7814/? I/chromium: [INFO:library_loader_hooks.cc(112)] Chromium logging enabled: level = 0, default verbosity = 0
08-28 10:58:24.054 7814-7814/? I/BrowserProcessMain: Initializing chromium process, renderers=0
08-28 10:58:24.064 7814-7833/? W/chromium: [WARNING:proxy_service.cc(888)] PAC support disabled because there is no system implementation
08-28 10:58:24.094 7814-7814/? D/EGL_emulation: eglCreateContext: 0xb957c140: maj 2 min 0 rcv 2
eglMakeCurrent: 0xb957c140: ver 2 0
08-28 10:58:24.134 7814-7817/? D/dalvikvm: GC_CONCURRENT freed 101K, 5% free 3698K/3872K, paused 1ms+22ms, total 31ms
08-28 10:58:24.164 7814-7814/? D/dalvikvm: GC_FOR_ALLOC freed 1K, 5% free 3697K/3872K, paused 20ms, total 20ms
08-28 10:58:24.164 7814-7814/? I/dalvikvm-heap: Grow heap (frag case) to 6.975MB for 3456696-byte allocation
08-28 10:58:24.174 7814-7817/? D/dalvikvm: GC_CONCURRENT freed <1K, 3% free 7073K/7248K, paused 3ms+1ms, total 8ms
08-28 10:58:24.174 7814-7823/? D/dalvikvm: WAIT_FOR_CONCURRENT_GC blocked 5ms
08-28 10:58:24.234 7814-7814/? I/dalvikvm: Could not find method android.webkit.CookieManager.setAcceptThirdPartyCookies, referenced from method org.apache.cordova.engine.SystemCookieManager.
08-28 10:58:24.234 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11427: Landroid/webkit/CookieManager;.setAcceptThirdPartyCookies (Landroid/webkit/WebView;Z)V
08-28 10:58:24.234 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x001b
08-28 10:58:24.234 7814-7814/? I/dalvikvm: Could not find method android.webkit.CookieManager.flush, referenced from method org.apache.cordova.engine.SystemCookieManager.flush
08-28 10:58:24.234 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11420: Landroid/webkit/CookieManager;.flush ()V
08-28 10:58:24.234 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x0008
08-28 10:58:24.244 7814-7814/? W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/webkit/ClientCertRequest;)
VFY: unable to find class referenced in signature (Landroid/webkit/ClientCertRequest;)
08-28 10:58:24.244 7814-7814/? I/dalvikvm: Could not find method android.webkit.WebViewClient.onReceivedClientCertRequest, referenced from method org.apache.cordova.engine.SystemWebViewClient.onReceivedClientCertRequest
08-28 10:58:24.244 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11500: Landroid/webkit/WebViewClient;.onReceivedClientCertRequest (Landroid/webkit/WebView;Landroid/webkit/ClientCertRequest;)V
08-28 10:58:24.244 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6f at 0x001a
08-28 10:58:24.244 7814-7814/? W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/webkit/PermissionRequest;)
08-28 10:58:24.244 7814-7814/? I/dalvikvm: Could not find method android.webkit.PermissionRequest.getResources, referenced from method org.apache.cordova.engine.SystemWebChromeClient.onPermissionRequest
08-28 10:58:24.244 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11441: Landroid/webkit/PermissionRequest;.getResources ()[Ljava/lang/String;
08-28 10:58:24.244 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x000d
08-28 10:58:24.244 7814-7814/? I/dalvikvm: Could not find method android.webkit.WebChromeClient$FileChooserParams.createIntent, referenced from method org.apache.cordova.engine.SystemWebChromeClient.onShowFileChooser
08-28 10:58:24.244 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11446: Landroid/webkit/WebChromeClient$FileChooserParams;.createIntent ()Landroid/content/Intent;
08-28 10:58:24.244 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x0000
08-28 10:58:24.264 7814-7814/? D/SystemWebViewEngine: CordovaWebView is running on device made by: unknown
08-28 10:58:24.264 7814-7814/? D/PluginManager: init()
08-28 10:58:24.264 7814-7814/? I/dalvikvm: Could not find method android.content.Context.getExternalMediaDirs, referenced from method org.apache.cordova.file.LocalFilesystem.isPublicDirectory
08-28 10:58:24.264 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 305: Landroid/content/Context;.getExternalMediaDirs ()[Ljava/io/File;
08-28 10:58:24.264 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x0008
08-28 10:58:24.274 7814-7814/? D/FileUtils: Unrecognized extra filesystem identifier: assets
08-28 10:58:24.464 7814-7814/? D/dalvikvm: GC_FOR_ALLOC freed 3765K, 53% free 3444K/7284K, paused 9ms, total 10ms
08-28 10:58:24.464 7814-7814/? I/dalvikvm-heap: Grow heap (frag case) to 10.609MB for 7526412-byte allocation
08-28 10:58:24.484 7814-7817/? D/dalvikvm: GC_CONCURRENT freed <1K, 27% free 10793K/14636K, paused 7ms+0ms, total 13ms
08-28 10:58:24.504 7814-7814/? I/dalvikvm: Could not find method android.view.Window.setStatusBarColor, referenced from method org.apache.cordova.statusbar.StatusBar.setStatusBarTransparent
08-28 10:58:24.504 7814-7814/? W/dalvikvm: VFY: unable to resolve virtual method 11138: Landroid/view/Window;.setStatusBarColor (I)V
08-28 10:58:24.504 7814-7814/? D/dalvikvm: VFY: replacing opcode 0x6e at 0x001c
08-28 10:58:24.504 7814-7814/? D/CordovaWebViewImpl: >>> loadUrl(file:///android_asset/www/index.html)
08-28 10:58:24.534 7814-7814/? D/CordovaActivity: Started the activity.
Resumed the activity.
08-28 10:58:24.584 7814-7814/? D/EGL_emulation: eglCreateContext: 0xb9604b80: maj 2 min 0 rcv 2
08-28 10:58:24.644 7814-7814/? D/EGL_emulation: eglMakeCurrent: 0xb9604b80: ver 2 0
08-28 10:58:24.644 7814-7814/? E/EGL_emulation: tid 7814: eglSurfaceAttrib(1199): error 0x3009 (EGL_BAD_MATCH)
08-28 10:58:24.644 7814-7814/? W/HardwareRenderer: Backbuffer cannot be preserved
08-28 10:58:24.644 7814-7814/? D/OpenGLRenderer: Enabling debug mode 0
08-28 10:58:24.714 7814-7814/? D/EGL_emulation: eglMakeCurrent: 0xb9604b80: ver 2 0
08-28 10:58:24.714 7814-7814/? E/EGL_emulation: tid 7814: eglSurfaceAttrib(1199): error 0x3009 (EGL_BAD_MATCH)
08-28 10:58:24.714 7814-7814/? W/HardwareRenderer: Backbuffer cannot be preserved
08-28 10:58:24.744 7814-7814/? D/EGL_emulation: eglMakeCurrent: 0xb9604b80: ver 2 0
08-28 10:58:24.864 7814-7814/? D/EGL_emulation: eglMakeCurrent: 0xb9604b80: ver 2 0
08-28 10:58:24.964 7814-7814/? D/CordovaWebViewImpl: onPageDidNavigate(file:///android_asset/www/index.html)
08-28 10:58:25.144 7814-7814/ut.app D/SystemWebChromeClient: file:///android_asset/www/index.html: Line 9 : Viewport argument key “viewport-fit” not recognized and ignored.
08-28 10:58:25.144 7814-7814/ut.app I/chromium: [INFO:CONSOLE(9)] “Viewport argument key “viewport-fit” not recognized and ignored.”, source: file:///android_asset/www/index.html (9)
08-28 10:58:25.414 7814-7814/ut.app D/JsMessageQueue: Set native->JS mode to EvalBridgeMode
08-28 10:58:26.444 7814-7814/ut.app D/SystemWebChromeClient: file:///android_asset/www/build/main.js: Line 1 : Uncaught SyntaxError: Duplicate data property in object literal not allowed in strict mode
08-28 10:58:26.444 7814-7814/ut.app I/chromium: [INFO:CONSOLE(1)] “Uncaught SyntaxError: Duplicate data property in object literal not allowed in strict mode”, source: file:///android_asset/www/build/main.js (1)
08-28 10:58:26.584 7814-7814/ut.app D/CordovaWebViewImpl: onPageFinished(file:///android_asset/www/index.html)
08-28 10:58:26.864 7814-7814/ut.app I/chromium: [INFO:async_pixel_transfer_manager_android.cc(56)] Async pixel transfers not supported
08-28 10:58:26.924 7814-7814/ut.app I/chromium: [INFO:async_pixel_transfer_manager_android.cc(56)] Async pixel transfers not supported
08-28 10:58:26.934 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.944 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.954 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.964 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.974 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.984 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:26.994 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:27.034 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:27.044 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:27.054 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
08-28 10:58:27.064 7814-7814/ut.app D/gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 589824
gralloc_alloc: Creating ashmem region of size 245760

//////////
You can’t go in with --prod
You can go in without using --prod
??

Did you remote debug the problem on the device already? Follow these instructions here to debug the problem in Chrome dev tools: https://ionic.zone/debug/remote-debug-your-app#android Look at the console and network tabs for errors.

What is your ionic info output?
What device are you testing on? OS version?

E:\net\UT.APP>ionic info
√ Gathering environment info - done!

Ionic:

ionic (Ionic CLI) : 4.1.1 (C:\Users\zyh\AppData\Roaming\npm\node_modules\ionic)
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.1.11

Cordova:

cordova (Cordova CLI) : 8.0.0
Cordova Platforms : none
Cordova Plugins : cordova-plugin-ionic-keyboard 2.0.5, (and 17 other plugins)

System:

NodeJS : v8.11.2 (d:\Program Files\nodejs\node.exe)
npm : 5.6.0
OS : Windows 10

image

That’s highly unprobably, what does ionic cordova platform list return?
What does ionic cordova plugins list return?

With Android 4.x you will probably get problems when you upgrade all your plugins. This is not a problem right now, but might be one if you create a new one or update this app: https://ionic.zone/debug/ionic-and-android-4

Did you remote debug your app now?

@Sujan12
Viewport argument key “viewport-fit” not recognized and ignored. [index.html:9](file:///android_asset/www/index.html)

Uncaught SyntaxError: Duplicate data property in object literal not allowed in strict mode

use Android4+ This problem will occur

cordova 6.3 This version will have this problem?

Please answer the questions I asked.

Possibly - it is old. Software gets updated because things don’t work any more.

Your Cordova tooling seems to be out of date, which might be causing all kinds of problems.
You can read about how to figure out the current Cordova versions and how to update CLI, platforms and plugins here: https://ionic.zone/cordova/update