When trying to run a model via the Mo.Net Quotation Service, you may receive the following error:
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body>
<s:Fault>
<faultcode>s:Client</faultcode>
<faultstring xml:lang="en-GB">System.IO.IOException: The process cannot access the file 'C:\Windows\system32\Results\UL_ReviewsProj_1_Records.txt' because it is being used by another process.

Server stack trace: 
at GenCore.Model.CatchException(String Func, Exception Exp, Boolean Throw, Int32 t, Boolean OnlyThrowOnRecordChange)
at UL_ReviewsProj.CatchException(String Func, Exception Exp, Boolean Throw, Int32 t, Boolean OnlyThrowOnRecordChange)
at UL_ReviewsProj.RunSerial(Boolean OutputResults)
at GenCore.Model.Run(Boolean OutputResults, Boolean CallResetReferencedProjections)
at ProcessHost.Run()
at QuoteRequestProcessor.CreateAndRunProjection(Dictionary`2 inputs)
at QuoteRequestProcessor.ProcessQuoteRequest(Dictionary`2 inputs)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]: 
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Sal.Quotes.Contracts.IQuoteRequestProcessor.ProcessQuoteRequest(Dictionary`2 requestDetails)
at Sal.Quotes.QuotesService.RequestProcessorProxy.ProcessQuoteRequest(Dictionary`2 requestDetails)
at Sal.Quotes.QuotesService.QuotationsService.DoPackageCall(PackageCallDetails details, String clientIpAddress)
at Sal.Quotes.QuotesService.Host.QuotesService.DoPackageCall(PackageCallDetails details)</faultstring>
</s:Fault>
</s:Body>
</s:Envelope>
To resolve this error, the Tasks assigned to the Quotes Service group projection have the "Output Record Results" check-box ticked.
This must be unchecked and the projection should be repackaged and uploaded to the Mo.net Quotations Service.