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It appears that "Build Action: Content" from dependancies is not being copied to the output folder. The behavior is reproducible; but somewhat non-deterministic. Some "Build Action: Content" files get copied from dependancies; others don't.
This happens on Mac 10.7.4, MonoDevelop 18.104.22.168, Mono 2.10.9
This can be reproduced in a project that I've open-sourced:
git clone https://github.com/GWBasic/ObjectCloud.git
git checkout 583fa93c1e
After MonoDevelop opens:
1: Right click on the "ObjectCloud" project and select "Build"
2: Right click on the "ObjectCloud" project and select "Show in Finder", then go to bin/Debug
3: Observe that the ObjectCloud project has ObjectCloud.Disk in its References, and that ObjectCloud.Disk has Factories.xml as "Build Action: Content"
4: Observe that ObjectCloud/bin/Debug does not have Factories.xml
5: Observe that ObjectCloud.Disk/bin/Debug HAS Factories.xml
This bug is inconsistant, but repeatable:
6: Observe that ObjectCloud references ObjectCloud.Disk.Implementation
7: Observe that ObjectCloud.Disk.Implementation has Disk.xml as "Build Action: Content"
8: Observe that ObjectCloud/bin/Debug HAS Disk.xml.
Strange, huh? I've been working with this solution since 2008 using various flavors of Visual Studio and MonoDevelop, and this just showed up!
I just encountered this bug while trying to update from a very old version of MonoDevelop. This bug appears to have been introduced back in April as a result of some performance optimizations. The reason it only occurs for some of your file is due to the order in which the projects are referenced.
Project A references Project B and Project C
Project B references Project C
If Project B is referenced before Project C in Project A, Project C's "Build Action: Content" (or None) files would not be copied to Project A's build output folder.
If you modify Project A to reference Project C before Project B, then Project C's "Build Action: Content" (or None) files would be copied to Project A's build output folder.
I have submitted a pull request, https://github.com/mono/monodevelop/pull/205, which fixes the issue, as this breaks most of our projects.