Xamarin Forms Ui project (Multiplatform) - android

I am making this UI for a multiplatform app using Xamarin on my Macbook.
I have set FormsUI as startup project.
Xamarin gives errors when i try to run the project on ios simulator.
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/iOS/Xamarin.iOS.Common.targets:
Error: Failed to load output manifest for ibtool: Unrecognized property list format. (XPlatformFormsUI.iOS)
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/iOS/Xamarin.iOS.Common.targets:
Error: Output manifest contents: (XPlatformFormsUI.iOS)

This particular error has been mentioned in the Xamarin Forms forum; basically, something in one of the iOS assets (e.g. a storyboard) is the cause. Unfortunately, you don't get much information regarding WHICH asset it was in the error. Try creating a brand new solution and gradually introduce your changes until you hit the error.

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NativeScript Build - Error executing Static Binding Generator: Class not found android.support.v4.view.ViewPager.OnPageChangeListener

I'm new to NativeScript and took over a project recently upgraded from NativeScript 4 to 6. Here is my environment detials:
Windows 10
Node v16.6.1
NativeScript 8.0.2
Android Studio 11 (with al
the recommended updates to date)
VS Code 1.58.2
I can create a new Native script project with "tns create" and build/run it in the simulator just fine. However, when I try to run the project the build throws the following error:
java.lang.RuntimeException: Class not found android.support.v4.view.ViewPager.OnPageChangeListener
at org.nativescript.staticbindinggenerator.Generator.getClass(Generator.java:551)
at org.nativescript.staticbindinggenerator.Generator.getInterfacesFromCache(Generator.java:534)
at org.nativescript.staticbindinggenerator.Generator.writeBinding(Generator.java:283)
at org.nativescript.staticbindinggenerator.Generator.generateBinding(Generator.java:171)
at org.nativescript.staticbindinggenerator.Generator.processRows(Generator.java:234)
at org.nativescript.staticbindinggenerator.Generator.generateBindings(Generator.java:121)
at org.nativescript.staticbindinggenerator.Generator.writeBindings(Generator.java:97)
at org.nativescript.staticbindinggenerator.Main.main(Main.java:55)
Here is the run command I'm using: "tns run android --emulator"
I have tried tons of things and searches but no luck resolving this issue.
So I had an idea and searched with a different search engine than I normally use. I did find some ideas which helped me resolved the issue.
I had previously searched in VSCode for variations on "android.support.v4.view.ViewPager.OnPageChangeListener", but only found the log file with the error. Then I learned you have to change the filter options of the find in file search otherwise the files you are looking for can be excluded from the search results. I also used Baregrep to confirm I was getting everything.
I fixed the issue by replacing all occurrences of:
android.support.v4.view.ViewPager with androidx.viewpager.widget.ViewPager
Also you may need to install widgets:npm i tns-core-modules-widgets
Since the files where I made the changes were all non-project files (many of them in the node_modules directory) there is probably something else that involves updating Node or NativeScript that may solve this as well.
If someone else figures that out, I'll be watching this thread for updates, and thanks in advance!
Fissh

Unable to build GStreamer pipeline; no element x265enc in Android

I am trying to implement H265 using the x265enc encoder in an android application using GStreamer. I have constructed the pipeline which works when using the terminal and gst-launch-1.0 and videotestsrc. However, when trying to execute the pipeline in android it doesn't work and gives the error gst_error_factory_make: no such element factory "x265enc"! and is unable to build the pipeline due to the element x265enc missing.
I have installed plugins-bad (contains x265enc) on the computer and it is in the android.mk file. When I look in the plugins.mk file I don't see x265 mentioned anywhere (x264 is mentioned and x264enc works). Is this an issue? Is there another way to install x265enc so that android can recognize it?
try to install gst-plugins-ugly-1.0 and it will solve your issue

Error building openframeworks for android: “ invalid use of incomplete type ‘class Poco::Path’”

I am trying to build an android application with OF. The application runs in two other computers. However, it does not work on mine. I am using a mac.
I run the command "make AndroidDebug" in the project folder, and this is the error I have:
/Library/openFrameworks/addons/ofxHTTP/libs/ofxHTTP/src/PostRouteFileHandler.cpp:98:46: error: invalid use of incomplete type 'class Poco::Path'
ss << Poco::Path(formFileName).getExtension();
I have installed poco, but nothing changes afterwards.
What can I do to solve this?
Thanks
Have you included Poco/Path.h?
A forward declaration might appeared earlier (possibly in another header) without complete definition.

Error while trying to apportable iOS app to Android

I have been trying to port my first iOS app to Android with apportable.
I have solved alot of warnings and errors but cannot get rid of this last one.
The App I made is a fitness application for jogging so it uses CoreLocation.
Everything looks good when I run apportable now except this last error:
Build/android-armeabi-debug/com.apptonix.easyrunner/testTabbedWithCore/libtestTabbedWithCore.a(DetailViewController.m.o):/Users/peterbodlund/Documents/xcodeprojects/Training/inlamning5/testTabbedWithCore/testTabbedWithCore/DetailViewController.m:function L_OBJC_CLASSLIST_REFERENCES_$_114: error: undefined reference to 'OBJC_CLASS_$_MKPinAnnotationView'
scons: * [Build/android-armeabi-debug/EasyRunner/apk/lib/armeabi/libverde.so] Error 1
scons: building terminated because of errors.
Exception AttributeError: "'NoneType' object has no attribute 'pack'" in > ignored
Usually this is an indicator that there were link errors. Check your output higher up and look for missing symbol errors.
The build log is confusing because the build is parallel by default.
Add the option -j1 to cause the build to stop immediately after the first error.

NUnitLite in Xamarin (Android). Unable to load Mono.Data.Sqllite.dll

I'm currently experimenting with Xamarin for the first time, as well as NUnitLite for the first time. I've set up a small Android project and a test project. In the Android project I make use of SqlLite, and in my test project I want to write some integration tests for my database insert/update/select methods.
However, when I run tests which includes a call to my class "GroupRepository" (which includes a type from the Mono.Data.Sqllite.dll in its constructor) I get the following exception. Note that I've also added the mentioned dll to my test-project.
TestInsertWithLegalValues (IntegrationTests.Repository.RepositoryTests.TestInsertWithLegalValues)
System.IO.FileLoadException : Could not load file or assembly 'Mono.Data.Sqlite, version=2.0.5.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A)
----> System.Security.SecurityException : Strong name validation failed. (Exception from HRESULT: 0x8013141A)
at Repository.GroupRepository..ctor()
at IntegrationTests.Repository.RepositoryTests.SetUp()
--SecurityException
The Android project targets API 8 using Xamarin 2.0. The test project is a Windows Console Application .NET 4.5.
Why is this failing the way it is?
Thanks for any input!

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