I am debugging a bug in my build process that happens occasionally but I can't directly reproduce it. I'm using msbuild with teamcity.

I have a dependency hierarchy like this:

Some.Interop.dll
   Dependency-> SharedDllABC.dll

SomeService.exe
   Depenendcy-> Some.Interop

Usually the final service exectuable gets in its release directory:

Some.Interop
SharedDllABC.Dll
ServiceExectuable.exe

However I can see in our msbuild logs that sometimes the tertiary dependency gets deleted during an Incremental Clean after everything is built resulting in:

Some.Interop
ServiceExectuable.exe

You can see it here in the msbuild log:

[src\SomeService\SomeService.csproj] _TimeStampAfterCompile
[12:32:43]:  [src\SomeService\SomeService.csproj] Compile

// some other targets

[12:32:43]:  [src\SomeService\SomeService.csproj] _CopyFilesMarkedCopyLocal
[12:32:43]:      [_CopyFilesMarkedCopyLocal] Copy
[12:32:43]:          [Copy] Copying file from "C:Projects\trunk\src\Some.Interop\bin\Release\Some.Interop.dll" to "bin\Release\Some.Interop.dll".

// some other targets

[src\Project\SomeService\SomeService.csproj] IncrementalClean
[18:54:42]:         [IncrementalClean] Delete
[18:54:42]:             [Delete] Deleting file "C:\Projects\trunk\src\Project\SomeService\bin\Release\SharedDllABC.dll".
[18:54:42]:             [Delete] Deleting file "C:\Projects\trunk\src\Project\SomeServiceService\bin\Release\SharedDllABC.pdb".
[18:54:42]:     [src\Project\SomeService\SomeService.csproj] CoreBuild
[18:54:42]:     [src\Project\SomeService\SomeService.csproj] AfterBuild
[18:54:42]:     [src\Project\SomeService\SomeService.csproj] Build

This is my direct msbuild output, I just changed the project names/dll names to match my example. By the time this Incremental Clean has occurred the SomeService.csproj has already been built. You can

visual-studio-2010 msbuild teamcity
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