Why am I receiving a XamlParseException on my BindingContext? - xamarin.forms

I can't understand why I'm receiving a XAML parsing error:
Unhandled Exception:
Xamarin.Forms.Xaml.XamlParseException: Position 8:10. Type
uilogic:ViewModel1 not found in xmlns
clr-namespace:Nikeza.Mobile.UILogic.Registration;assembly=Nikeza.Mobile.UILogic
occurred
I know for a fact that my namespace declaration is correct because IntelliSense displays the class name as a suggestion when I'm setting my binding-context.
Here's the view-model that I'm trying to bind to:
The following attempts have failed:
deleted obj and bin folders
Rebooted machine

Just Try:
xmlns:registration="clr-namespace:Nikeza.Mobile.UILogic.Registration"

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I'm trying so solve a Warning in an old asp.net Webapplication.
The warning Shows:
The Reference of Type System.Collections.Generic.ISet´1 is declared in "c:\Windows\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll" , but couldn't found
Data: System.Core.dll
All the Files are in the folders. I dont know what it means and how I should solve that warning. Anybody got a clue?

Failed to generate code for the service reference on a webservice

EgoPay's website has a WebService that i'm trying to work with, But there is a problem when i add it to my Asp.Net project( I added it through "Add Service Reference" option) after building solution i have got an error :
Custom tool error: Failed to generate code for the service reference 'ServiceReference1'.  Please check other error and warning messages for details.
and i have got 3 Warning :
1- Custom tool warning: Cannot import wsdl:portType
Detail: An exception was thrown while running a WSDL import extension: System.ServiceModel.Description.XmlSerializerMessageContractImporter
Error: The datatype 'schemas.xmlsoap.org/soap/encoding/:Array' is missing.
XPath to Error Source: //wsdl:definitions[#targetNamespace='www.egopay.com/api/soap']/wsdl:portType[#name='API_EgoPay_SoapPort']
2- Custom tool warning: Cannot import wsdl:port
Detail: There was an error importing a wsdl:binding that the wsdl:port is dependent on.
XPath to wsdl:binding: //wsdl:definitions[#targetNamespace='www.egopay.com/api/soap']/wsdl:binding[#name='API_EgoPay_SoapBinding']
XPath to Error Source: //wsdl:definitions[#targetNamespace='www.egopay.com/api/soap']/wsdl:service[#name='API_EgoPay_SoapService']/wsdl:port[#name='API_EgoPay_SoapPort']
3- Custom tool warning: Cannot import wsdl:binding
Detail: There was an error importing a wsdl:portType that the wsdl:binding is dependent on.
XPath to wsdl:portType: //wsdl:definitions[#targetNamespace='www.egopay.com/api/soap']/wsdl:portType[#name='API_EgoPay_SoapPort']
XPath to Error Source: //wsdl:definitions[#targetNamespace='https://www.egopay.com/api/soap']/wsdl:binding[#name='API_EgoPay_SoapBinding']
the webservice address is : https://www.egopay.com/api/soap?wsdl
i searched in the net for this error and most of answers were "uncheck Reused types in referenced assemblies" but it did'nt work to me.
i'll be thankfull if anyone help me or anyone could test this webservice in asp.net and tell me the result.

Linkage error:Loader Constraint violation: previously initiated loading for a different type with name "org/w3c/dom/Type Info"

I am using java1.6,grails 2.0. I want to process Docx documents.For this i have added jars poi-ooxml-3.5-FINAL.jar,ooxml-schemas-1.1.jar.
But in code line this.document = new XWPFDocument(buffInputStream);
i got below error
Class java.lang.ClassNotFoundException
Message org.apache.xmlbeans.XmlOptions
I am trying to add jars either xmlbeans-2.5.0.jar or xbean-2.1.0.jar.
I am getting below error
| Error Fatal error during compilation
org.apache.tools.ant.BuildException: java .lang.LinkageError: loader
constraint violation: loader (instance of bootloader)
previously initiated loading for a different type with name "org/w3c/dom/Type Info" (Use --stacktrace to see the full trace)
If i verify my Jre System Library, rt.jar contains this TypeInfo class. how
to solve this problem? Please advice. Thank you.
Hi,
I have tried removing library and used jarscan to search this class. But i didn't find any where. Please help out to figure out how else i can find where is this class and how to resolve this
This happened to me with the JMX MBeanServer class. Groovy was loading one of them with its classloader and so was the JVM.
In your case it sounds like the TypeInfo class exists in rt.jar just fine, but another class loader loads it from that jar (or another jar) again.
Running the JRE with "-verbose:class" showed that double load behavior. Then I moved the offending jar out of my classpath and it worked just fine with the one loaded by Groovy.
I would recommend moving rt.jar out of your classpath, or if you need other classes inside of rt.jar try unjaring and rejaring it without the Type class. That way the classloaders will be forced to use the ones in xmlbeans-2.5.0.jar or xbean-2.1.0.jar.

Server Error in '/IIS' Application

Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: CS0246: The type or namespace name 'PropertiesLayer' could not be found (are you missing a using directive or an assembly reference?)
Looks like your code could not findout "PropertiesLayer" which you are refering in your code.
Where is PropertiesLayer defined ? Is it a seperate assembly ? Did you add a reference to that ? If not, add that. That would fix your problem.
Also make sure you are really using something inside that namespace, If you are not using,just remove the import /using statement. I have seen code where namespaces are refereed and not being used.

CorePlot SIGABRT runtime error xcode4

I've modified the code at http://www.switchonthecode.com/tutorials/using-core-plot-in-an-iphone-application to run on xcode4, I have a view that I put into my ConsoleViewControllor.xib with its class as CPTGraphHostingView.
Compiles great, at runtime however, I get a SIGABRT at line
hostingView.hostedGraph = graph; with the error
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIView setHostedGraph:]: unrecognized selector sent to instance 0x5910d40'
* Call stack at first throw:
Anyone else run into this issue? I'm more than willing to give you code and answer more questions. Thanks in advance!
Check the setup in your .xib again. -[UIView setHostedGraph:] means that Xcode created a UIView, not a CPTGraphHostingView.

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