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POCan't load WinRT Component unless I reference the project
 

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    <p>I'm running into an odd problem. I created a Windows Runtime Component (for Windows Store) that makes some legacy C/C++ code available to .NET via some C# wrapper classes.</p> <p>I wrote a test harness Store App (hereafter referred to as "test1") that references the WRC <em>project</em> (both projects in the same solution). It calls into the component and everything works fine.</p> <p>Next I take the following output files from the WRC project:</p> <pre><code>MyWrtComponent.dll MyWrtComponent.exp MyWrtComponent.pdb MyWrtComponent.pri MyWrtComponent.winmd </code></pre> <p>...and try to use them from another Store app project ("test2"). In this project, instead of referencing the MyWrtComponent project, I add a reference to the .winmd file. Everything builds fine, but when I run the test2 app I get a System.IO.FileNotFound exception from mscorlib as soon as I try to use one of the C# classes implemented in MyWrtComponent:</p> <pre><code>at System.StubHelpers.StubHelpers.GetWinRTFactoryObject(IntPtr pCPCMD) at MyWrtComponent.MyWrtClass..ctor() The specified module could not be found. (Exception from HRESULT: 0x8007007E) </code></pre> <p>Using release vs. debug build of the MyWrtComponent doesn't make any difference.</p> <p>Running ProcMon on test2, I see several unsuccessful attempts at loading vccorlib120_app.DLL (or vccorlib120d_app.DLL if I'm building debug):</p> <pre><code>QueryOpen F:\test2\bin\Debug\AppX\vccorlib120d_app.DLL NAME NOT FOUND QueryOpen F:\test2\bin\Debug\AppX\vccorlib120d_app.DLL NAME NOT FOUND CreateFile C:\Windows\SysWOW64\vccorlib120d_app.DLL NAME NOT FOUND </code></pre> <p>I've confirmed that this file doesn't exist in my C:\Windows\SysWOW64 folder. I don't know whether that's relevant to my problem.</p> <p>When I run test1, different locations are searched, and the file is found:</p> <pre><code>QueryOpen F:\test1\bin\Debug\AppX\vccorlib120d_app.DLL NAME NOT FOUND CreateFile C:\Program Files\WindowsApps\Microsoft.VCLibs.120.00.Debug_12.0.20827.3_x86__8wekyb3d8bbwe\vccorlib120d_app.dll SUCCESS </code></pre> <p>I compared the bin\Debug\AppxManifest.xml of both test projects, and noticed one important difference; test1 has the following and test2 doesn't:</p> <pre><code>&lt;Dependencies&gt; &lt;PackageDependency Name="Microsoft.VCLibs.120.00.Debug" MinVersion="12.0.20827.3" /&gt; &lt;/Dependencies&gt; </code></pre> <p>If I add these three lines to the generated output of test2 and run the app, it works, but of course that's not a real fix.</p> <p>Does anyone understand what's going on here? Does MyWrtComponent have a dependency that somehow isn't being communicated, or am I supposed to do something to package vccorlib120d_app.DLL along with my runtime component, or ... ?</p> <p>Thanks in advance. </p>
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