间接引用解决方案项目会导致“类型在未引用的程序集中定义”

Question

My solution contains project A and test project TA . The test project references solution project A and some DLL B . The DLL B references DLL generated by A . I have a type Foo which is defined on A and is tested by TA .

When I tell to build TA , VS2013 bombs me with:

The type 'Foo' is defined in an assembly that is not referenced. You must add a reference to assembly 'A, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.   C:\mysolution\src\TA\TestFoo.cs 32  17  TA

However the type Foo is defined on A , which is on my solution!!! Even the editor understands that!!! Just the builder insists to use whatever is defined by B .

How can I tell VS to ignore/override the reference that B has on A , and use the output of my project A instead?

Is there some assemblyBinding or similar option that I can use to make the build work?

Answer 1

So this is your dependency diagram if I understand you right:

TA --> B
 |     |
 |     V
  ---> A

It sounds like you have to explicitly set the build order. A must build before B and B must build before TA otherwise B and TA will be referencing different versions of A . If B builds before A then it will reference an older version of A .

You can solve this by either making A a project reference in B or explicitly setting the project dependencies for the solution in Visual Studio.

Answer 2

I fixed this way:

• Changed TA.csproj to not reference project A in the same solution, but instead reference the same DLL that B references.
• Added App.config to TA , with an assemblyBinding element that forces .NET to load the version of A that I'm building in the solution, for the B DLL.