When I open my VS 2019 I'm faced with the following error:
This still happens even when I created a new project from scratch using .Net Framework 4.7.2:
Related
As mentioned in the title I need to modify a very old project. It uses .NET 4 Framework and connects to a local SQLite database. I used Visual Studio 2012 to avoid compatibility problems.
I cannot open the .EDMX file - I get this error:
Error 10027: The XML namespace for the conceptual model's Schema element is not supported on this project's target framework version.
I tried to install Entity Framework 6 because I read that should resolve the problem, but I'm not able to find it anywhere.
How can I fix this problem?
I am trying to create and use a localdb database using entity framework in vs2013 in a windows form application, but I am getting an error. Here are the details:
but when I try to run the program, I get this error:
Any solutions?
maybe the problem related to permissions. have you tried to run visual studio as administrator.
I'm trying to install the EntityFramework 6.1.3 (latest stable version) dependency in a .NETStandard 1.4 class library but I keep getting a Package restore failed error. I get the same error with previous versions of EntityFramework (I tried everything back to v6.1.0). I've tried restarting Visual Studio and restarting the VM I'm running it in to no avail.
What am I doing wrong?
You need to use the entity framework core with .net standard not entity framework 6
https://www.nuget.org/packages/Microsoft.EntityFrameworkCore/
With NuGet 3.3.0 we get the following error when restoring AutoMapper 5.1.1. Other packages restore successfully:
[11:49:53] [restore] Unable to find version '5.1.1' of package 'AutoMapper'.
[11:49:53] [restore] Process exited with code 1
There was an issue we had where we were unable to restore this package in Visual Studio 2013 on our dev machines unless we updated the NuGet package manager.
If we build the project in Visual Studio 2013 on the TeamCity server, the package restores successfully, leading us to believe that it's the NuGet version on the build agents that needs updating.
We tried to upload the NuGet.CommandLine.3.4.3.nupkg via the TeamCity | Tools menu, however TeamCity complains that it's not a valid NuGet package because it doesn't contain tools\NuGet.exe, even though it does!
We did manage to successfully upload Nuget.CommandLine.3.6.0-beta1.1839.nupkg, however that gives us a different error when the build step attempts to run.
So we're stuck. Has anyone out there had this issue and managed to resolve it?
Uploading NuGet.CommandLine.3.5.0-beta-final.nupkg to TeamCity (Administration => Tools => NuGet.exe => Add Version) and setting the NuGet build step to version 3.5.0-beta-final successfully resolved our issue.
I got the package from: https://dotnet.myget.org/feed/nuget-build/package/nuget/NuGet.CommandLine/3.5.0-beta-final
I get the following error trying to add a new entity model. Any ideas on how to troubleshoot or fix this?
An error occurred loading the entity data model tools package. failed
to load entity data model tools package. the result is -2147024894
Visual Studio 2015 Update 1
v14.0.24720.00
Entity Framework Nuget Package
v6.1.3
Microsoft .net 4.6.0
UPDATE
I tried installing this, it worked once and then after rebooting a couple days later no longer fixed the issue. It's back:
I was able to fix this by downloading the entity framework 6.x t4 templates and installing them from this: https://visualstudiogallery.msdn.microsoft.com/18a7db90-6705-4d19-9dd1-0a6c23d0751f?SRC=VSIDE
I was able to get around this error by changing the framework from version 4.x to 4.5 on my project and then restarting visual studio. It took some tinkering but it appears this occurs because the Visual Studio 2015 Entity Model Package wizard is dependent on something in the 4.5 framework.