JavaFX 11, How can I handle this error? java.lang.module.FindException - javafx

Whenever I create a JavaFX project from eclipse, I got compiling error as follows and don't know how to solve the issue:
Eclipse, widows10, Error occurred during initialization of boot layer java.lang.module.FindException: Module javafx.controls not found
What I've done before I got this message: JavaFX 11 is installed, User library(JavaFX) is created and added to a project, Build path is configured, VM argument is added But I still get this error message.
I need to work on a project with JavaFX but this error stopped me from doing my job for several days.
I did exactly what is said in the link.
//openjfx.io/openjfx-docs
https://www.youtube.com/watch?v=9XJicRt_FaI&t=1365s
What seems to be the problem? I really appreciate your help.

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I am getting the following error in Xamrain forms and their is no more detail I can give until you ask me as unfamiliar with the error never had it before.
Severity Code Description Project File Line Suppression State
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abstract method checkView(View,int) in ChipItemViewProvider public
class
CGViewProvider_1 THEHOCKEYLAB.Android D:\GitMaster\thehockeylabl.mobile\THEHOCKEYLAB\THEHOCKEYLAB.Android\obj\Debug\110\android\src\crc640a67887a4134e062\CGViewProvider_1.java 4
It seems to be something to do with their conversation code that converts the code into real time java, I see no obv way of getting to what the error is from here it happens on launch and cancels the build..
Its making a referring to ChipItemViewProdiver I have not changed processers or any part of my pc this application works.
If you let me no how to get extra debug info to diagnose this I would be greatfull
Edit 2
It would be appear to do with having fast debug on and the linker at the same time I am trailing it here and see if it works.
This was caused by having the linker and fast debug switched on your settings for Android should be like this. To avoid the error.
BTW I didnt change this manually folks this was after VS Update

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I have created a brand new Uno project and off the bat I get compile errors. I most common one I am getting is a cs 1061 App does not contain a definition for InitializeComponent. The app would run with this error, but once I start adding more pages to the application, the application no longer compiles. How do I resolve this issue? Also, I get this same error for each page that I add. The oddest part about this issue is that the app.xaml.cs suffers from it too.
I am also getting a XLS0411 that is complaining about the background brush that comes with the default page.
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
The message about InitializeComponent() is a false positive from Visual Studio, this is a known issue. The Uno Platform documentation recommends to build the project once, close the solution, and then reopen it to get rid of this error.
In general the Error window is less useful with Uno Platform projects because of the various false positives, it's more reliable to check the Build pane in the Output window. The Error window is Intellisense's best guess as what errors your code may have; the Build output is what actually happened when it tried to compile. If you search for "error " from the top of the Build output you should quickly find the reason the compilation failed; this will tell you why it's failing when you add pages to the application.

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I am attempting to deploy a change to a legacy ASP.NET solution. I have copied over the views and css files, but when I try to copy over a modified assembly, I get this error when the application runs:
Compiler Error Message: BC30456: 'InitializeCulture' is not a member of 'ASP.dashboard_aspx'.
I understand that the site may need to recompile itself, but it is complaining about a view I haven't changed. It is also griping about missing member InitializeCulture which I can't even find a reference for in my code.
The site works fine in debug and when deployed locally BTW.
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In the end I lost patience with trying to deploy what I thought had changed and simply published the website to a directory and then copied that over en masse.
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VerifyError: Error #1014: Class mx.controls.advancedDataGridClasses::AdvancedDataGridRendererProvider could not be found

I am porting over a Flex application from 4.1 to 4.5 and have run into some issues with the AdvancedDataGrid classes being found. The application compiles ok under 4.5.1 but at runtime I get the following error:
VerifyError: Error #1014: Class mx.controls.advancedDataGridClasses::AdvancedDataGridRendererProvider could not be found.
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Many thanks,
Ian
Verify error really means that there's something wrong with versions of classes you are trying to access at runtime.
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VerifyError: Error #1014: class could not be found

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I'm getting the following error at the start of my application:
ReferenceError: Error #1065: Variable mx.messaging.config::ConfigMap is not defined.
at _ABC_FlexInit$/init()
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff()
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()
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at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/timerHandler()
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
I have gone through a lot of posts on various forums. Most of them say that this error usually occurs in cases like:
not declaring classes as 'public'
trying to refer something that isn't there
syntax error
When i run my application, it actually runs just fine. When i try to run the swf that is generated from maven install on my application, that is when this error occurs. So i can safely say that the above mentioned cases are not the reason for this error. So why is my maven built swf throwing this error. Any help would be much appreciated.
Thanks.
You are not providing that class instance at runtime. My guess would be that your Maven configuration assumes that this class (which I think is in rpc.swc under your FLEX_HOME/frameworks/lib/ directory) will be loaded as an RSL - but it cannot be found. You need to double check your Maven configuration and find out how you are including all elements of the framework and that you are including all necessary RSL's with your application when you deploy.

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