VS2015 解决方案构建给出编译错误

Question

I've been battling with a bizarre compilation error that I've been getting when running VS2015. The error is that when I compile (rebuild) a solution (it's a large solution, with 96 projects), I get a compilation error. The error is:

70>------ Rebuild All started: Project: MyBase, Configuration: Debug Any CPU ------ 70>I:\\WS\\Main\\Common\\MyBase\\MyBase\\BaseApplication.cs(1,7,1,10): error CS0246: The type or namespace name 'MyProject' could not be found (are you missing a using directive or an assembly reference?)

So, the first thing that I did was try to compile MyBase , and it compiles fine. I then individually compiled (rebuild) various groups of projects, until it finally errored when trying to compile the first project that used MyBase, giving a slightly different error:

44>------ Rebuild All started: Project: MyBase, Configuration: Debug Any CPU ------

43>CSC : error CS0006: Metadata file 'I:\\WS\\Main\\Common\\MyBase\\MyBase\\bin\\Debug\\MyBase.dll' could not be found

The next thing that I tried was an MSBuild on the command line of the entire solution - which worked.

Finally, returning to VS2015, i tried doing a rebuild, and then a build, and the solution didn't error.

Looking at the numbers in the build, it looks to me like it is executing some of the build steps out of synch (44 before 43). Is this possible? Is there some kind of asynchronous build that has crept into VS and started causing this behaviour. I've double and triple checked the dependencies, and they seem fine to me.

Answer 1

Visual Studio 2015 supports parallel compiles. If some of your projects depend on each other you have to set up project dependencies. You can do this with the project dependencies menu point in the project menu. See MSDN for details.