From a brand new console application template in visual studio, I edited the .csproj to build another project like this:
...
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<Target Name="BeforeBuild">
<MSBuild Projects=".\other.mproj"/>
</Target>
...
Where other.mproj is:
<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
<Target Name="Build">
<Message Text="kikou" />
</Target>
</Project>
After a while I discovered that modifying the content of other.mproj (for instance, by introducing errors or changing text kikou to something else) would not be taken into account unless unloading/reloading the project in visual studio.
Building from the command line with 'msbuild myproj.csproj' immediatly detect changes in 'other.mproj'. So it all looks like visual studio is working from a cached version of other.mproj file.
Why is visual studio caching this other script (which is even not included to the project), and how can I solve this issue ?
Update: I also tried this UseHostCompilerIfAvailable, it doesn't work.
NB1: I didn't add other.mproj as a project reference in the .csproj because it is not a .NET project at all (it just creates resources files for the .csproj from other inputs before the build)
NB2: I'm using VS2010 (10.0.10219.1SP1Rel + MSBuild 4.0.30319.1)
