Hello,

I am carrying out Verification and I get this message. Apparently, some verification setting is rather disagreeable or some source/target content is disagreeable. My guess. 

Here is the error dump:

<SDLErrorDetails time="5/4/2020 8:50:41 AM">
<ErrorMessage>Failed to verify document: Object reference not set to an instance of an object.</ErrorMessage>
<Exception>
<Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<HelpLink />
<Source>Sdl.Verification.TermVerifier</Source>
<HResult>-2147467261</HResult>
<StackTrace><![CDATA[ at Sdl.Verification.TermVerifier.TermVerifierProcessing.CheckTermsWithoutTarget(ISegment source, String sourceText)
at Sdl.Verification.TermVerifier.TermVerifierProcessing.Verify(ISegment Source, ISegment Target, Boolean sourceHasRevisions, Boolean targetHasRevisions)
at Sdl.Verification.TermVerifier.TermVerifierMain.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Core.Utilities.BilingualApi.BilingualContentHandlerAdapter.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Integration.AbstractBilingualProcessorContainer.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.BilingualApi.AbstractBilingualContentProcessor.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Integration.LocationMarkerLocator.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Integration.AbstractBilingualProcessorContainer.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Framework.Integration.FileExtractor.ProcessParagraphUnit(IParagraphUnit paragraphUnit)
at Sdl.FileTypeSupport.Bilingual.Tmfc.TmfcReaderImpl.vv_Visit(TmfcReaderImpl* , FrameworkParagraphContainerField* field)
at FrameworkParagraphContainerField.vv_AcceptFrameworkVisitor(FrameworkParagraphContainerField* , FrameworkFieldVisitor* visitor)
at Sdl.FileTypeSupport.Bilingual.Tmfc.TmfcReaderImpl.vv_VisitStartEndField(TmfcReaderImpl* , StartEndField* startEnd)
at Sdl.FileTypeSupport.Bilingual.Tmfc.TmfcReaderImpl.b_VisitNext(TmfcReaderImpl* )
at Sdl.FileTypeSupport.Bilingual.Tmfc.TmfcReader.ParseNext()
at Sdl.FileTypeSupport.Framework.Integration.FileExtractor.ParseNext()
at Sdl.FileTypeSupport.Framework.Integration.MultiFileConverter.ParseNext()
at Sdl.FileTypeSupport.Framework.Integration.MultiFileConverter.Parse()
at Sdl.TranslationStudio.Editor.Verification.VerifyDocumentJobRequest.PerformBilingualVerification()
at Sdl.TranslationStudio.Editor.Verification.VerifyDocumentJobRequest.Execute(IJobExecutionContext context)
at Sdl.Desktop.Platform.Implementation.Services.Job.<_worker_DoWork>b__47_0()
at Sdl.Desktop.Logger.Log.Resources(Object message, Action action)
at Sdl.Desktop.Platform.Implementation.Services.Job._worker_DoWork(Object sender, DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)]]></StackTrace>
</Exception>
<Environment>
<ProductName>SDL Trados Studio</ProductName>
<ProductVersion>15.0.0.0</ProductVersion>
<EntryAssemblyFileVersion>15.2.6.2831</EntryAssemblyFileVersion>
<OperatingSystem>Microsoft Windows 10 Home Single Language</OperatingSystem>
<ServicePack>NULL</ServicePack>
<OperatingSystemLanguage>1033</OperatingSystemLanguage>
<CodePage>1252</CodePage>
<LoggedOnUser>GURUDUTTKAMATHP\Gurudutt R Kamath</LoggedOnUser>
<DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
<ComputerName>GURUDUTTKAMATHP</ComputerName>
<ConnectedToNetwork>True</ConnectedToNetwork>
<PhysicalMemory>4069952 MB</PhysicalMemory>
</Environment>
</SDLErrorDetails>