Well, my app works very well on ionic serve, but now, i dont know why, since 2 days, when i try to build my app on an android device i have a blank page. No splash screen, no errors on Android studio, nothing…
I give you my Android Studio Logcat if it can help to find my mistake or …
2019-05-11 18:41:02.402 10790-10790/? E/Zygote: isWhitelistProcess - Process is Whitelisted
2019-05-11 18:41:02.402 10790-10790/? E/Zygote: accessInfo : 1
2019-05-11 18:41:02.406 10790-10790/? I/ovedefy.androi: Late-enabling -Xcheck:jni
2019-05-11 18:41:02.730 10790-10810/com.myApp.android D/libEGL: loaded /vendor/lib64/egl/libGLES_mali.so
2019-05-11 18:41:02.734 10790-10790/com.myApp.android I/CordovaLog: Changing log level to DEBUG(3)
2019-05-11 18:41:02.734 10790-10790/com.myApp.android I/CordovaActivity: Apache Cordova native platform version 8.0.0 is starting
2019-05-11 18:41:02.734 10790-10790/com.myApp.android D/CordovaActivity: CordovaActivity.onCreate()
2019-05-11 18:41:02.759 10790-10790/com.myApp.android I/WebViewFactory: Loading com.android.chrome version 74.0.3729.136 (code 372913652)
2019-05-11 18:41:02.800 10790-10790/com.myApp.android I/cr_LibraryLoader: Time to load native libraries: 3 ms (timestamps 9804-9807)
2019-05-11 18:41:02.828 10790-10790/com.myApp.android I/chromium: [INFO:library_loader_hooks.cc(50)] Chromium logging enabled: level = 0, default verbosity = 0
2019-05-11 18:41:02.828 10790-10790/com.myApp.android I/cr_LibraryLoader: Expected native library version number “74.0.3729.136”, actual native library version number “74.0.3729.136”
2019-05-11 18:41:02.858 10790-10834/com.myApp.android W/cr_ChildProcLH: Create a new ChildConnectionAllocator with package name = com.android.chrome, sandboxed = true
2019-05-11 18:41:02.861 10790-10834/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/content/Context;->bindServiceAsUser(Landroid/content/Intent;Landroid/content/ServiceConnection;ILandroid/os/Handler;Landroid/os/UserHandle;)Z (light greylist, reflection)
2019-05-11 18:41:02.865 10790-10790/com.myApp.android I/cr_BrowserStartup: Initializing chromium process, singleProcess=false
2019-05-11 18:41:02.946 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker;->(Landroid/content/Context;I)V (light greylist, reflection)
2019-05-11 18:41:02.946 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker;->logEvent(Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;)V (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionStarted(I)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionModified(II)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionModified(IILandroid/view/textclassifier/TextClassification;)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionModified(IILandroid/view/textclassifier/TextSelection;)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionAction(III)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.947 10790-10790/com.myApp.android W/ovedefy.androi: Accessing hidden method Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent;->selectionAction(IIILandroid/view/textclassifier/TextClassification;)Landroid/view/textclassifier/logging/SmartSelectionEventTracker$SelectionEvent; (light greylist, reflection)
2019-05-11 18:41:02.963 10790-10790/com.myApp.android I/DecorView: createDecorCaptionView >> DecorView@6b8a35b, isFloating: false, isApplication: true, hasWindowDecorCaption: false, hasWindowControllerCallback: true
2019-05-11 18:41:02.972 10790-10790/com.myApp.android D/SystemWebViewEngine: CordovaWebView is running on device made by: samsung
2019-05-11 18:41:02.984 10790-10790/com.myApp.android D/PluginManager: init()
2019-05-11 18:41:02.987 10790-10790/com.myApp.android D/CordovaWebViewImpl: >>> loadUrl(file:///android_asset/www/index.html)
2019-05-11 18:41:03.009 10790-10850/com.myApp.android W/cr_media: Requires BLUETOOTH permission
2019-05-11 18:41:03.014 10790-10790/com.myApp.android D/CordovaActivity: Started the activity.
2019-05-11 18:41:03.016 10790-10790/com.myApp.android D/CordovaActivity: Resumed the activity.
2019-05-11 18:41:03.017 10790-10790/com.myApp.android D/OpenGLRenderer: Skia GL Pipeline
2019-05-11 18:41:03.019 10790-10890/com.myApp.android I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 1
2019-05-11 18:41:03.019 10790-10890/com.myApp.android I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 1
2019-05-11 18:41:03.022 10790-10790/com.myApp.android D/EmergencyMode: [EmergencyManager] android createPackageContext successful
2019-05-11 18:41:03.066 10790-10790/com.myApp.android D/InputTransport: Input channel constructed: fd=130
2019-05-11 18:41:03.067 10790-10790/com.myApp.android D/ViewRootImpl@d857a1a[MainActivity]: setView = DecorView@6b8a35b[MainActivity] TM=true MM=false
2019-05-11 18:41:03.067 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/ac4
2019-05-11 18:41:03.068 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/x-ima
2019-05-11 18:41:03.078 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/x-ape
2019-05-11 18:41:03.081 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/eac3-joc
2019-05-11 18:41:03.091 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/mpeg-L1
2019-05-11 18:41:03.093 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/mpeg-L2
2019-05-11 18:41:03.099 10790-10790/com.myApp.android V/InputMethodManager: Not IME target window, ignoring
2019-05-11 18:41:03.102 10790-10890/com.myApp.android W/AudioCapabilities: Unsupported mime audio/x-ms-wma
2019-05-11 18:41:03.118 10790-10790/com.myApp.android D/ViewRootImpl@d857a1a[MainActivity]: dispatchAttachedToWindow
2019-05-11 18:41:03.130 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile 8192 for video/hevc
2019-05-11 18:41:03.131 10790-10790/com.myApp.android D/ViewRootImpl@d857a1a[MainActivity]: Relayout returned: old=[0,0][1080,2280] new=[0,0][1080,2280] result=0x7 surface={valid=true 516075737088} changed=true
2019-05-11 18:41:03.132 10790-10924/com.myApp.android I/OpenGLRenderer: Initialized EGL, version 1.4
2019-05-11 18:41:03.132 10790-10924/com.myApp.android D/OpenGLRenderer: Swap behavior 2
2019-05-11 18:41:03.132 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile 8192 for video/hevc
2019-05-11 18:41:03.137 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile 4 for video/hevc
2019-05-11 18:41:03.137 10790-10924/com.myApp.android D/mali_winsys: EGLint new_window_surface(egl_winsys_display *, void *, EGLSurface, EGLConfig, egl_winsys_surface **, EGLBoolean) returns 0x3000
2019-05-11 18:41:03.137 10790-10924/com.myApp.android D/OpenGLRenderer: eglCreateWindowSurface = 0x7828272000, 0x782882d010
2019-05-11 18:41:03.143 10790-10890/com.myApp.android W/VideoCapabilities: Unsupported mime video/mp43
2019-05-11 18:41:03.149 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile/level 1/32 for video/mp4v-es
2019-05-11 18:41:03.149 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile/level 32768/2 for video/mp4v-es
2019-05-11 18:41:03.149 10790-10890/com.myApp.android W/VideoCapabilities: Unrecognized profile/level 32768/64 for video/mp4v-es
2019-05-11 18:41:03.150 10790-10890/com.myApp.android W/VideoCapabilities: Unsupported mime video/wvc1
2019-05-11 18:41:03.150 10790-10890/com.myApp.android W/VideoCapabilities: Unsupported mime video/wvc1
2019-05-11 18:41:03.170 10790-10890/com.myApp.android W/VideoCapabilities: Unsupported mime video/x-ms-wmv7
2019-05-11 18:41:03.171 10790-10890/com.myApp.android W/VideoCapabilities: Unsupported mime video/x-ms-wmv8
2019-05-11 18:41:03.188 10790-10890/com.myApp.android I/VideoCapabilities: Unsupported profile 4 for video/mp4v-es
2019-05-11 18:41:03.249 10790-10790/com.myApp.android D/ViewRootImpl@d857a1a[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 1 1
2019-05-11 18:41:03.252 10790-10790/com.myApp.android D/InputMethodManager: prepareNavigationBarInfo() DecorView@6b8a35b[MainActivity]
2019-05-11 18:41:03.253 10790-10790/com.myApp.android D/InputMethodManager: getNavigationBarColor() -855310
2019-05-11 18:41:03.259 10790-10790/com.myApp.android D/InputMethodManager: prepareNavigationBarInfo() DecorView@6b8a35b[MainActivity]
2019-05-11 18:41:03.259 10790-10790/com.myApp.android D/InputMethodManager: getNavigationBarColor() -855310
2019-05-11 18:41:03.259 10790-10790/com.myApp.android V/InputMethodManager: Starting input: tba=com.myApp.android ic=null mNaviBarColor -855310 mIsGetNaviBarColorSuccess true , NavVisible : true , NavTrans : false
2019-05-11 18:41:03.259 10790-10790/com.myApp.android D/InputMethodManager: startInputInner - Id : 0
2019-05-11 18:41:03.259 10790-10790/com.myApp.android I/InputMethodManager: startInputInner - mService.startInputOrWindowGainedFocus
2019-05-11 18:41:03.263 10790-10790/com.myApp.android D/CordovaWebViewImpl: onPageDidNavigate(file:///android_asset/www/index.html)
2019-05-11 18:41:03.264 10790-10887/com.myApp.android D/InputTransport: Input channel constructed: fd=145
2019-05-11 18:41:03.265 10790-10790/com.myApp.android D/ViewRootImpl@d857a1a[MainActivity]: MSG_RESIZED: frame=Rect(0, 0 - 1080, 2280) ci=Rect(0, 112 - 0, 0) vi=Rect(0, 112 - 0, 0) or=1
2019-05-11 18:41:03.270 10790-10790/com.myApp.android D/InputMethodManager: prepareNavigationBarInfo() DecorView@6b8a35b[MainActivity]
2019-05-11 18:41:03.270 10790-10790/com.myApp.android D/InputMethodManager: getNavigationBarColor() -855310
2019-05-11 18:41:03.270 10790-10790/com.myApp.android V/InputMethodManager: Starting input: tba=com.myApp.android ic=null mNaviBarColor -855310 mIsGetNaviBarColorSuccess true , NavVisible : true , NavTrans : false
2019-05-11 18:41:03.270 10790-10790/com.myApp.android D/InputMethodManager: startInputInner - Id : 0
2019-05-11 18:41:03.537 10790-10790/com.myApp.android D/CordovaWebViewImpl: onPageFinished(file:///android_asset/www/index.html)
2019-05-11 18:41:08.692 10790-10845/com.myApp.android D/TcpOptimizer: TcpOptimizer-ON
2019-05-11 18:41:08.781 10790-10847/com.myApp.android D/NetworkSecurityConfig: No Network Security Config specified, using platform default
Thank you all!