c# - Xamarin App crashes on Reopen NullReference -

-

i have app on xamarin, works fine, if press button, move main menu hides in app stack, when open app stack crashes nullreference

06-10 15:59:57.363 i/monodroid(14891): unhandled exception: 06-10 15:59:57.363 i/monodroid(14891): system.nullreferenceexception: object reference not set instance of object 06-10 15:59:57.363 i/monodroid(14891): @ xamarin.forms.platform.android.formsapplicationactivity.onprepareoptionsmenu (android.views.imenu) <il 0x00007, 0x00050> 06-10 15:59:57.363 i/monodroid(14891): @ android.app.activity.n_onprepareoptionsmenu_landroid_view_menu_ (intptr,intptr,intptr) [0x00011] in /users/builder/data/lanes/monodroid-mavericks-monodroid-5.1-series/d419c934/source/monodroid/src/mono.android/platforms/android-21/src/generated/android.app.activity.cs:4151 06-10 15:59:57.363 i/monodroid(14891): @ (wrapper dynamic-method) object.87f976f0-8c0f-4463-92f4-c8ed92b6336d (intptr,intptr,intptr) <il 0x00017, 0x0004b> 06-10 15:59:57.383 d/androidruntime(14891): shutting down vm 06-10 15:59:57.383 w/dalvikvm(14891): threadid=1: thread exiting uncaught exception (group=0x41b66c08) unhandled exception occured.

any ideas helpful, stuck long

my main activity code: http://pastebin.com/d9g77mjg

we figured out issue. problem 3rd party library isn't officially supported (xlabs). have own dependency service , greag re-registering things causing exception being gobbled loadapplication never loaded.


Comments

Post a Comment

Popular posts from this blog

javascript - oscilloscope of speaker input stops rendering after a few seconds -

-
the following script reads audio user's microphone , renders oscilloscope on html canvas. the source taken example of mozilla developer network: visualizations web audio api and here fiddle: http://jsfiddle.net/b7j8pktp/ mozgetusermedia (note: code has no fork mechanism different browsers: works firefox) it works fine few seconds , stops rendering. whereas works totally stable: http://mdn.github.io/voice-change-o-matic/ the problem can reduced following code. microphone activation icon (next the address bar in firefox) disappears after 5 seconds: navigator.mozgetusermedia({audio: true}, function() {}, function() {} ); ( http://jsfiddle.net/b7j8pktp/2/ ) this known bug in firefox. take stream getusermedia call , hook window so: navigator.mozgetusermedia({audio: true}, function(stream) { window.stream = stream; // rest of code }, function err() { // handle error }); hopefully can fixed soon. problem we're f
Read more

javascript - gulp-nodemon - nodejs restart after file change - Error: listen EADDRINUSE events.js:85 -

-
i'm running nodejs 0.12.3 - gulp 3.10.8 , gulp-nodemon 2.0.3. gulpfile.js : gulp.task('serve', ['build'], function() { gulp.start('fb-flo'); nodemon({ script: paths.server, env: { 'node_env': 'development' }, // env: { 'node_env': 'production' }, execmap: { 'js': 'node_modules/babel/bin/babel-node --stage 1' //es7 cote server }, delay: '0ms', watch: ['src/shared/', 'src/server/'], ignore: ['src/shared/components'], tasks: function (changedfiles) { var tasks = []; changedfiles.foreach(function (file) { if (path.extname(file) === '.jsx' && !~tasks.indexof('bundlejs')) tasks.push('bundlejs'); if (path.extname(file) === '.less' && !~tasks.indexof('compileless')) tasks.push('compileless'); }); return tasks; }
Read more

Fatal Python error: Py_Initialize: unable to load the file system codec. ImportError: No module named 'encodings' -

-
i trying make simple python program opening list of webpages user manually download reports site. don't have previous experience preparing exe files.. , i'm in learning process python coding. of done on windows 7 x64 this python code: #!c:/python34/python.exe -u splinter import * import time import os import csv #---------------------------------- raporty = [] open('../raporty.csv', newline='') csvfile: contents = csv.reader(csvfile, delimiter=' ', quotechar='|') row in contents: r = ', '.join(row) r = r.replace(',','') raporty.append(r) #--not implemented yet zmienne = [] open('../zmienne.csv', newline='') csvfile: contents = csv.reader(csvfile, delimiter=' ', quotechar='|') row in contents: r = ', '.join(row) r = r.replace(',','') zmienne.append(r) print("start") browser = browser(
Read more