Visual Studio Builds Projects Every Time I Run

Question

I have a .NET solution in Visual Studio 2010 with a bunch of projects. Up until recently, when I would run the startup project from within the IDE, projects would only buil

Answer 1

I'll share the best answer i've found here on stackoverflow and combined with matt smith's accepted answer here, i´ve reached the root cause of my problem:

By configuring Visual Studio to log the build output in a "Diagnostic" manner, as explained in this answer: https://stackoverflow.com/a/29649259/2740778, the very first line on the output explains why MSBuild determines to rebuild a project.

So, if you have, let's say 3 projects into a solution:

• Library0
• Library1
• Application

referenced this way: Application references Library1 and this one references Library0. By selecting "Build" for the Application project, the first time it should build all the referenced projects in order. But from now on, if no changes where made, pressing "Build" should not build anything, because MSBuild detects that changes where not made. A similar log output should be displayed:

========== Build: 0 succeeded, 0 failed, 3 up-to-date, 0 skipped ==========

But now, if changes where made, if you have the MSBuild log output level on "Diagnostic", the first line in the output window will display the reason of why does Visual Studio decides to build a project, like here:

Project 'Library0' is not up to date. Input file 'c:\Library0\Class1.cs' is modified after output file 'c:\Library0\bin\Debug\Library0.pdb'.