Error: object reference not set to an instance of an object

Question

I've looked at every thread regarding this error, but this error message looks like it's used for lots of different cases and I couldn't find anyone who created this error the same way I did.

This error will start happening when I open multiple files in the same editor window by highlighting the files I want to edit > right click > open for translation.

Then I will edit the files like normal and then click the save button.

When I close out of the editor window and then double-click a single file to edit, that's when the error shows up. Here are the error details:

<SDLErrorDetails time="10/31/2017 10:25:21 PM">
<ErrorMessage>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.FileTypeSupport.Bilingual.SdlXliff</Source>
<HResult>-2147467261</HResult>
<StackTrace><![CDATA[ at Sdl.FileTypeSupport.Bilingual.SdlXliff.XliffFileReader.ParseCommentMetadataElement(XmlElement cmtMetadataElement)
at Sdl.FileTypeSupport.Bilingual.SdlXliff.XliffFileReader.ParseDocInfoElement(XmlElement docInfoElement)
at Sdl.FileTypeSupport.Bilingual.SdlXliff.XliffFileReader.OnDocInfo(XmlElement docInfo)
at Sdl.FileTypeSupport.Bilingual.SdlXliff.SdlXliffFeeder.<ContinueScanning>b__0(ISdlXliffStreamContentHandler handler)
at System.Collections.Generic.List`1.ForEach(Action`1 action)
at Sdl.FileTypeSupport.Bilingual.SdlXliff.SdlXliffFeeder.ContinueScanning()
at Sdl.FileTypeSupport.Bilingual.SdlXliff.XliffFileReader.ContinueParsing()
at Sdl.FileTypeSupport.Bilingual.SdlXliff.XliffFileReader.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.TranslationEditor.TranslatableDocument.Load(IJobExecutionContext context)
at Sdl.Desktop.Platform.Services.JobRequest.Execute(IJobExecutionContext context)
at Sdl.Desktop.Platform.Implementation.Services.Job.<_worker_DoWork>b__3()
at Sdl.Desktop.Platform.Implementation.Services.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>

M Carmen Sosa · Answer

Hello Andy, Do your files in Studio come from XLIFF files? I mean, do your SDLXLIFF file names end in ".xlf.sdlxliff"? If that is the case, perhaps this thread could help: community.sdl.com/.../10456 Try the following: 1. Save your bilingual files in a different folder as backups (just in case, you know). 2. If your project came from a package generated by someone else, get the original unedited SDLXLIFF files from said package. If you created the project from source files, create a second project from them. 3. Open one of those unedited files in a text editor (Notepad++, for instance) and then, do the same with one of your edited files. 4. Check if there are differences between the headers of both files. 5. If they are actually different, replace the header of your edited file with that of the unedited file. Save. 6. Go to your project in Studio and try to open the file whose header you have just modified. If it opens, problem would be solved. Yet, before doing anything else, go to "Project Settings > File Types > XLIFF > Settings" and check if the checkbox "Do not store segmentation info in translated file" checkbox (or something similar, my UI is in Spanish and I don't remember the exact wording) is unchecked (second checkbox). If it is, check it. Repeat the previous 6 steps with all your files in project. With this, the "Object reference..." error should not happen again. Hope I could be of some help!

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Error: object reference not set to an instance of an object

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