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POWCF Application "Unable to find assembly" for SQLite
 

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  1. POWCF Application "Unable to find assembly" for SQLite
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    <p>Note: This is a solved problem, but I just spend 4 hours at this issue, so I wanted to share the solution.</p> <hr> <p>When I attempt to access a WCF service, the service never responds, and the event log shows the following:</p> <blockquote> <p>An unhandled exception occurred and the process was terminated.</p> <p>Application ID: DefaultDomain</p> <p>Process ID: 3180</p> <p>Exception: System.Runtime.Serialization.SerializationException</p> <p>Message: Unable to find assembly 'System.Data.SQLite, Version=1.0.66.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139'.</p> <p>StackTrace: at System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssembly() at System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo assemblyInfo, String name) at System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String objectName, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA, Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable)<br> at System.Runtime.Serialization.Formatters.Binary._<em>BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record) at System.Runtime.Serialization.Formatters.Binary.</em>_BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum) at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run() at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage) at System.Runtime.Remoting.Channels.CrossAppDomainSerializer.DeserializeObject(MemoryStream stm) at System.AppDomain.Deserialize(Byte[] blob) at System.AppDomain.UnmarshalObject(Byte[] blob)</p> </blockquote> <hr> <p><strong>Solution</strong> In my case, the problem ended up being a simple incorrect database path. However, the error message in no way reflects the actual cause, so YMMV. </p> <p>The reason the "bad connection string" exception didn't make it to the event log seems related to <a href="http://support.microsoft.com/kb/911816" rel="nofollow">this KB article</a>. If the connection string isn't your problem, then your best course may be to follow the steps in this article, which will cause IIS to write exceptions to the event log.</p>
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    1. USJames Beninger
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