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Form does not open in VS2015, because own UserControl is not found



The 2019 Stack Overflow Developer Survey Results Are InThe type or namespace name could not be foundVisual Studio 2015 RTM crashing when opening a Windows FormsCan a Winforms application use the Forms Designer and access the SharePoint Server Side Object ModelForms sending data to UserControlsUserControl in Windows Phone 8.x project can't be found: “The type or namespace name 'UserControls' does not exist in the namespace”How can I add a UserControl to a Panel on the main form?Form with UserControl opens in VS2013 but not in VS2015Windows Forms Toolbox System.TypeInitializationException with UserControlsError on opening form in the DesignerRemoved one usercontrol from the main form, now all other usercontrols cant be found in the Designer of the main form



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;








0















Since i moved everything in my project to x64 and moved some files in subfolders everything works fine but an important form which is using an own userControl.



When i open the Form in VS2015 i get




Could not find type 'WYSIWYGEditor.Editor'. Please make
sure that the assembly that contains this type is referenced. If this
type is a part of your development project, make sure that the project
has been successfully built using settings for your current platform
or Any CPU.




Before, this usercontrol was in the same project. After i got this error i tried many things to fix this error. After having no solution i moved it to an own project which is also compiling in x64 and is referenced from the main project. Compiling shows, that both are compiled in x64 and debugging and running the project works well.



Last but not least i tried everything from here: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral



  • Cleaning up project

  • Recompiling

  • Renaming the UserControl several Times

  • Removing it from the form (form opens) and putting it back to the place

  • ...

Nothing helped. Anyone had similar issues and was able to fix it?



Greetings from Germany



Image: Form does not open










share|improve this question
























  • This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

    – Abhinaw Kaushik
    Mar 8 at 13:23

















0















Since i moved everything in my project to x64 and moved some files in subfolders everything works fine but an important form which is using an own userControl.



When i open the Form in VS2015 i get




Could not find type 'WYSIWYGEditor.Editor'. Please make
sure that the assembly that contains this type is referenced. If this
type is a part of your development project, make sure that the project
has been successfully built using settings for your current platform
or Any CPU.




Before, this usercontrol was in the same project. After i got this error i tried many things to fix this error. After having no solution i moved it to an own project which is also compiling in x64 and is referenced from the main project. Compiling shows, that both are compiled in x64 and debugging and running the project works well.



Last but not least i tried everything from here: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral



  • Cleaning up project

  • Recompiling

  • Renaming the UserControl several Times

  • Removing it from the form (form opens) and putting it back to the place

  • ...

Nothing helped. Anyone had similar issues and was able to fix it?



Greetings from Germany



Image: Form does not open










share|improve this question
























  • This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

    – Abhinaw Kaushik
    Mar 8 at 13:23













0












0








0








Since i moved everything in my project to x64 and moved some files in subfolders everything works fine but an important form which is using an own userControl.



When i open the Form in VS2015 i get




Could not find type 'WYSIWYGEditor.Editor'. Please make
sure that the assembly that contains this type is referenced. If this
type is a part of your development project, make sure that the project
has been successfully built using settings for your current platform
or Any CPU.




Before, this usercontrol was in the same project. After i got this error i tried many things to fix this error. After having no solution i moved it to an own project which is also compiling in x64 and is referenced from the main project. Compiling shows, that both are compiled in x64 and debugging and running the project works well.



Last but not least i tried everything from here: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral



  • Cleaning up project

  • Recompiling

  • Renaming the UserControl several Times

  • Removing it from the form (form opens) and putting it back to the place

  • ...

Nothing helped. Anyone had similar issues and was able to fix it?



Greetings from Germany



Image: Form does not open










share|improve this question
















Since i moved everything in my project to x64 and moved some files in subfolders everything works fine but an important form which is using an own userControl.



When i open the Form in VS2015 i get




Could not find type 'WYSIWYGEditor.Editor'. Please make
sure that the assembly that contains this type is referenced. If this
type is a part of your development project, make sure that the project
has been successfully built using settings for your current platform
or Any CPU.




Before, this usercontrol was in the same project. After i got this error i tried many things to fix this error. After having no solution i moved it to an own project which is also compiling in x64 and is referenced from the main project. Compiling shows, that both are compiled in x64 and debugging and running the project works well.



Last but not least i tried everything from here: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral



  • Cleaning up project

  • Recompiling

  • Renaming the UserControl several Times

  • Removing it from the form (form opens) and putting it back to the place

  • ...

Nothing helped. Anyone had similar issues and was able to fix it?



Greetings from Germany



Image: Form does not open







c# winforms visual-studio-2015 user-controls .net-assembly






share|improve this question















share|improve this question













share|improve this question




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edited Mar 8 at 11:21









Peter Cordes

135k19204345




135k19204345










asked Mar 8 at 10:56









rograsrogras

11




11












  • This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

    – Abhinaw Kaushik
    Mar 8 at 13:23

















  • This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

    – Abhinaw Kaushik
    Mar 8 at 13:23
















This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

– Abhinaw Kaushik
Mar 8 at 13:23





This could happen because of the other references this class is using also needs to be build on same configuration (in your case x64)

– Abhinaw Kaushik
Mar 8 at 13:23












1 Answer
1






active

oldest

votes


















0














I do not know what the point is and hope anyone can explain it.



In a german topic i found the tip to compile the userControl in x86. So i changed my Configuration for debug to compile the Usercontrol-Project in x86. After doing a rebuild for the dll-Project it worked!



Configuration






share|improve this answer























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    active

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    active

    oldest

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    0














    I do not know what the point is and hope anyone can explain it.



    In a german topic i found the tip to compile the userControl in x86. So i changed my Configuration for debug to compile the Usercontrol-Project in x86. After doing a rebuild for the dll-Project it worked!



    Configuration






    share|improve this answer



























      0














      I do not know what the point is and hope anyone can explain it.



      In a german topic i found the tip to compile the userControl in x86. So i changed my Configuration for debug to compile the Usercontrol-Project in x86. After doing a rebuild for the dll-Project it worked!



      Configuration






      share|improve this answer

























        0












        0








        0







        I do not know what the point is and hope anyone can explain it.



        In a german topic i found the tip to compile the userControl in x86. So i changed my Configuration for debug to compile the Usercontrol-Project in x86. After doing a rebuild for the dll-Project it worked!



        Configuration






        share|improve this answer













        I do not know what the point is and hope anyone can explain it.



        In a german topic i found the tip to compile the userControl in x86. So i changed my Configuration for debug to compile the Usercontrol-Project in x86. After doing a rebuild for the dll-Project it worked!



        Configuration







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Mar 8 at 11:44









        rograsrogras

        11




        11





























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