I have multiple projects in my solution and currently I am experiencing a very weird problem:
I have project A - rebuildable with no error.
I have project B referencing project A - also rebuildable with no error.
But when i try to rebuild all, the whole solution with othre projects except A and B it gives me errors:
Error 31 The type or namespace name 'Something' could not be found (are you missing a using directive or an assembly reference?)
And errors are not just in projects A or B, but all over the solution..
but when I comment in project B all the objects created from classes from project A ( and the project A is still referenced in project B) - it all works.
Any idea what may be causing such a strange problem?
thank you
RM click on your Project -> Add Reference...
find your DLL
Updated:
you should change your .Net Framework 4 Client Profile to .Net Framework 4
Related
I've added 3 default Blazor projects to my solution.
Blazor WebAssembly1
Blazor WebAsssembly2
Blazor Server
The first WebAssembly project is converted to a razor library in order to share code between server and webassembly projects. I also deleted the default pages like FetchData.razor and such.
On compilation I still get compile error on this (the app runs fine though), and I can't seem to resolve them. I've search through the entire solution but can't find any of the files that results in the compile errors.
How to locate the reason for the errors and remove the references? The files are deleted from the project.
Example of compiler error:
CS0246 The type or namepace 'WeatherForecastService' could not be found (are you missing a using directive or an assembly reference?)
The errors in FetchData indicate a problem with the using statements.
Try to check if you have global using, try to remove and declare explicit in the razor page.
Check your CSPROJ and verify the project type, in the RCL the type must be:
<Project Sdk="Microsoft.NET.Sdk.Razor">
In the RCL you haven't a Program/App structure, you have only components and wwwroot elements.
My RCL is composed as follow:
I have also a _Imports.razor with:
#using Microsoft.AspNetCore.Components.Web
...
The issue resolved itself when I restarted Visual Studio.
Sorry for the wild goose chase
I have successfully installed DNN 8 and all configuration.
i am also referring video to develop module in visual studio.
https://www.youtube.com/watch?v=AKCYRPuoXF4
when i am trying to build the project then
error comes like:
Error 17 The type or namespace name 'DotNetNuke' could not be found
(are you missing a using directive or an assembly
reference?) C:\websites\dnndev.me\DesktopModules\MyDNNModule\MyDNNModuleModuleSettingsBase.cs 13 7 MyDNNModule
Please help to solve that.
thank you in advance.
Working with DNN8, sometimes I get a set of errors with message
The type or namespace name 'DotNetNuke' could not be found (are you
missing a using directive or an assembly reference?)
, probably 10 or 15 of them, and all located on top of one ascx file. (My dotnetnuke.dll is correctly placed in DNN's bin folder). Taking a better look (scroll down!), I can see that - except them - there are some more error messages (maybe just one of them), and that those additional errors are perfectly clear and logical. So I correct my source code in order to avoid those additional messages, and when I do that - those problematic messages also disappear!
In my case it took me a while to find the solution to this problem, since it only got triggered when I made a change to the View.ascx file.
You need the Visual Studio project to target framework to 4.5 instead of 4.5.1.
I got this solution from here.
Make sure to add a Reference to dotnetnuke.dll in the c:\websites\dnndev.me\bin folder
I honestly haven't done anything with DNN 8 CTP yet, I would stick with 7.4.1 until 8 is official released.
I am upgrading MOSS2007 solution to SP2013. Everything is fine When I am building the solution at that time it is building successgully.
But when I am trying to publish the solution at that time it is throwing following error:
The type or namespace name 'xxx' does not exist in the namespace 'xxx' (are you missing an assembly reference?)
I have tried many things but no luck.
Is there any solution for this error?
When you have created your solution you may find that you have built the solution on a environment where a certain DLL exists.
Realistically what you need to do is look at your error message and look in to what DLL contains the namespace that the error is giving you the error and check that the DLL exists on all Web servers, Possibly app server(depending on farm set up)
Cheers
Truez
I am refering to the "Validation with Data Annotations tutorial" here http://www.asp.net/mvc/tutorials/older-versions/models-(data)/validation-with-the-data-annotation-validators-cs for my database first MVC3 project. I downloaded the DataAnnotationsModelBinder project but having difficulty building it. It throws following errors:
Error 1 'System.Web.Mvc.IValueProvider' does not contain a definition for 'DoesAnyKeyHavePrefix' and no extension method 'DoesAnyKeyHavePrefix' accepting a first argument of type 'System.Web.Mvc.IValueProvider' could be found (are you missing a using directive or an assembly reference?) C:\XYZ\DataAnnotationsModelBinder\src\DataAnnotationsModelBinder.cs 47 17 Microsoft.Web.Mvc.DataAnnotations
Error 2 Metadata file 'C:\XYZ\DataAnnotationsModelBinder\src\bin\Debug\Microsoft.Web.Mvc.DataAnnotations.dll' could not be found Microsoft.Web.Mvc.DataAnnotations.Tests
Am I missing anything? I tried using VS2008 as well as VS 2010.
Please help.
I'm assuming that you have some missing references, so you need to include the missing references in the project.
You can do this by right clicking the references folder and add them manually. (see image)
Refrences - image
You should not use the DataAnnotationsModelBinder with MVC3. The DefaultModelBinder class already contains all of the logic that was present in the DataAnnotationsModelBinder sample you have linked to.
You probably need to add a reference to System.Web.Mvc 1.0 instead of what you're got at the moment.
Really Visual Studio can be so annoying sometimes...
I did nothing else than deleting 3 UserControls in a folder. Since that time I get a error message I do not get rid of. Whatever I do I can not build successfully my project.
I did not touch the SchoolAdministrationUC.xaml file , but I deleted 3 other UserControls also located in the path: TBM\View\SchoolclassAdministration\
Error message from VS:
Error 1 The type or namespacename "SchoolclassAdministration" is in namespace "TBM.View" not available. (missing assembly reference?) E:\TBM\obj\x86\Debug\View\SchoolclassAdministration\SchoolAdministrationUC.g.cs 33 16 TBM
How do I get rid of error ?
Well, the fact that it shows the obj folder as where the error is, have you tried a clean build? Or a complete rebuild?
Sounds like there is an object out there looking for a non-existent namespace.
Build -> Rebuild Solution
This error comes up when you unwittingly create a new Windows application Project to add the existing code for a class library project in the same project folder. If the original class library project is not compatible with VS or you have any other issue then creating a new class class library is an option.