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Editorial Team
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Asked: 2026-05-30T21:31:05+00:00

In a way I am looking for best-practice here. I have a common project

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In a way I am looking for best-practice here.

I have a common project that is shared by many of my apps. This project has FlurryAnaylics and the ATMHud DLLs as references.

If I do not also reference these DLLs in the main project, the apps will often, but not always, fail in the debug-to-device test. In the debug-to-simulator I don’t need to add these DLLs to the main project.

So, the question is: Do I have to include references to DLLs in the main project that I have in sub projects all the time?

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1 Answer

  1. Editorial Team

    Whenever possible I use references to project files (csproj files) over references to assemblies (.dll). It makes a lot of things easier, like:

    • code navigation (IDE);
    • automatic build dependency (the source code you’re reading is the one you’re building, not something potentially out-of-sync);
    • source-level debugging (even if you can have it without it, you’re sure to be in-sync);
    • (easier) switch between Debug|Release|… configurations;
    • changing defines (or any project-level option);

    E.g.

    Solution1.sln

    • Project1a.csproj
    • MonoTouch.Dialog.csproj (link to ../Common/MonoTouch.Dialog.csproj)

    Solution2.sln

    • Project2a.csproj
    • MonoTouch.Dialog.csproj (link to ../Common/MonoTouch.Dialog.csproj)

    Common.sln

    • MonoTouch.Dialog.csproj

    Large solutions might suffer a bit from doing this (build performance, searching across files…). The larger they get the less likely everyone has to know about every part of it. So there’s a diminished return on the advantages while the inconvenience grows with each project being added.

    E.g. I would not want to have references to every framework assemblies inside Mono (but personally I could live with all the SDK assemblies of MonoTouch 😉

    Note: Working with assemblies references should not cause you random errors while debugging on device. If you can create such a test case please fill a bug report 🙂

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