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POMEF plugin dependency not loading as plugins directory is not checked
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  1. POMEF plugin dependency not loading as plugins directory is not checked
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    copied!<p>I'm having problems with MEF not picking up dependencies for loaded components. We have a directory structure that looks like:</p> <p>C:/MSMQ/DistributionService/[Main application]</p> <p>C:/MSMQ/Providers/[plugin components]</p> <p>Of course, we are using a DirectoryCatalog, the plugin is picked up, but one of its' dependencies is not. The error message is:</p> <pre><code>2012-11-02 10:46:59,379 [1] FATAL - Assemblies required by Provider are not found System.IO.FileNotFoundException: Could not load file or assembly 'BusinessObjects, Version=1.5.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. File name: 'BusinessObjects, Version=1.5.0.0, Culture=neutral, PublicKeyToken=null' === Pre-bind state information === LOG: User = &lt;redacted&gt; LOG: DisplayName = BusinessObjects, Version=1.5.0.0, Culture=neutral, Public KeyToken=null (Fully-specified) LOG: Appbase = file:///C:/MSMQ/DistributionService/ LOG: Initial PrivatePath = NULL Calling assembly : DistributedServicePropertyComponents, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null. === LOG: This bind starts in default load context. LOG: Using application configuration file: C:\MSMQ\DistributionService\Distr ibutionService.exe.Config LOG: Using host configuration file: LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\ v4.0.30319\config\machine.config. LOG: Policy not being applied to reference at this time (private, custom, partia l, or location-based assembly bind). LOG: The same bind was seen before, and was failed with hr = 0x80070002. 2012-11-02 10:46:59,401 [1] FATAL - Assemblies required by Provider are not found System.IO.FileNotFoundException: Could not load file or assembly 'BusinessObjects, Version=1.5.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. File name: 'BusinessObjects, Version=1.5.0.0, Culture=neutral, PublicKeyToken=null' === Pre-bind state information === LOG: User = B2B\addisona LOG: DisplayName = BusinessObjects, Version=1.5.0.0, Culture=neutral, Public KeyToken=null (Fully-specified) LOG: Appbase = file:///C:/MSMQ/DistributionService/ LOG: Initial PrivatePath = NULL Calling assembly : DistributedServicePropertyComponents, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null. === LOG: This bind starts in default load context. LOG: Using application configuration file: C:\MSMQ\DistributionService\DistributionService.exe.Config LOG: Using host configuration file: LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\ v4.0.30319\config\machine.config. LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). LOG: The same bind was seen before, and was failed with hr = 0x80070002. </code></pre> <p>I believe this is similar to a question on MSDN: <a href="http://social.msdn.microsoft.com/Forums/en-US/MEFramework/thread/b34ef4f4-e1f1-4f06-bd42-d7b3d5060f6f/" rel="noreferrer">http://social.msdn.microsoft.com/Forums/en-US/MEFramework/thread/b34ef4f4-e1f1-4f06-bd42-d7b3d5060f6f/</a> - but I don't understand the answer.</p> <p>Is there any way to provide a path to pick the problem assembly up from, or any other suggested solution?</p> <p>We have only started having this problem recently, but I can't see any changes I'd expect to cause that in our source control history.</p>
 

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