Visual Studio refuses to build project due to missing assembly reference that isn't missing

Question

I\'m building a c# windows service and has added a couple of assembly references (to other projects of my own) to my project.

I get the following error when I build

Answer 1

I the same problem. Or at least the symptoms were same. My solution was located on a network drive. Moving the solution to my local drive solved the problem for me.

The reason was apparently that Windows 10 didn't see the network drive as a trusted enough location. It worked fine until I managed to break my solution somehow. Visual studio apparently didn't have the required rights to perform needed the fixing operations.

Answer 2

1.remove all references

2.Build --> Clean solution

3.Clean your project using this project as sometimes visual studio fails to clean everything neatly.

Answer 3

In my case, target Framework of Assembly Project and the target Framework of the project where i want to use this assembly are different. Target framework of assembly project was 4.5 and target framework of my project was 4.0.

When I have change the target framework of my project to the target framework of assembly project i.e. from 4.0 to 4.5 , it works fine.

For change the Target Framework of project,

Right Click the project -> Properties -> Application -> Target Framework

This Target Framework is drop-down list, select your required Framework from this list.

Answer 4

Another possible issue could be mismatch in targeted versions of .NET between the assemblies. I experienced the same symptoms and setting the same version of framework did the trick for me.

Answer 5

I think you are missing a Nuget Library called: Bogus. You can install it from Nuget-Solution installer in visual studio. Just install it and also add using Bogus.DataSets; on your class file. Hopefully this will solve your issue.

Answer 6

Reinstalling packages worked for me.

From the Package Manager Console, run the the following command to reinstall all packages.

update-package -reinstall

You can target a single package with:

update-package PACKAGE_NAME -reinstall