Carl's Sim Guides Mod Tutorial Help - *SOLVED*

Hello everyone! My name is kellmachine and I am new to both this site and to modding! 

I was following this video made by Carl's Sim Guides on how to create a basic mod using XML files to lessen the frequency of idle animation. 
I got the following error message after I tried to extract tuning for interaction/Emotion_idle:
The Sims 4 Studio - Version 3.1.3.4

System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object.

at S4Studio.Data.FileDb.Models.ObjectContentMetadata.DoInitialize(ObjectCatalogResource buy_build, IResourceProvider resources, Object[] extras)

at S4Studio.Data.FileDb.Models.ContentMetadata`1.Initialize(IPackedResource resource, IResourceProvider resources, Object[] extra)

at S4Studio.Data.FileDb.Sims4FileTable.InitializeMetadata[TResource,TMetadata](Func`2 extra_func)

at S4Studio.Data.FileDb.Sims4FileTable.InitObjects()

at S4Studio.Data.FileDb.Sims4FileTable.get_ObjectItems()

at S4Studio.Data.IO.Tuning.CombinedTuning.<ExtractMergedTuning>d__4.MoveNext()

at S4Studio.ViewModels.Tools.TuningExportViewModel.<>c__DisplayClass15_0.<ProcessExportPackage>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

--- End of inner exception stack trace ---

---> (Inner Exception #0) System.NullReferenceException: Object reference not set to an instance of an object.

at S4Studio.Data.FileDb.Models.ObjectContentMetadata.DoInitialize(ObjectCatalogResource buy_build, IResourceProvider resources, Object[] extras)

at S4Studio.Data.FileDb.Models.ContentMetadata`1.Initialize(IPackedResource resource, IResourceProvider resources, Object[] extra)

at S4Studio.Data.FileDb.Sims4FileTable.InitializeMetadata[TResource,TMetadata](Func`2 extra_func)

at S4Studio.Data.FileDb.Sims4FileTable.InitObjects()

at S4Studio.Data.FileDb.Sims4FileTable.get_ObjectItems()

at S4Studio.Data.IO.Tuning.CombinedTuning.<ExtractMergedTuning>d__4.MoveNext()

at S4Studio.ViewModels.Tools.TuningExportViewModel.<>c__DisplayClass15_0.<ProcessExportPackage>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()<---





If anyone here could explain to me where I went wrong, I would greatly appreciate it! I followed the steps of the video to a T, including using XML Extractor and DocFetcher. 
Thanks in advance for all the help!