Error Message when in Power Query

[Anonymous]

Hi Experts

I am getting the following error, message in Power Bi, when i go into Edit Data and into Power Query...totally lost whats casued this and on how to get rid of this error...

Unexpected error: Collection was modified; enumeration operation may not execute.
Details:
    System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
   at Microsoft.Mashup.Host.Document.Analysis.PackageDocumentAnalysisInfo.PackagePartitionAnalysisInfo.SetPreviewValue(EvaluationResult2`1 result, Func`1 getStaleSince, Func`1 getSampled)

[v-yuta-msft]

@Anonymous ,

What data source are you connecting to? Could you share more details about what you had done before this issue happened?

Community Support Team _ Jimmy Tao

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Hi Jimmy. thanks for the feedback, managed to resolve the issue. I was connecting to Oracle db. The issue was with the element of R Script i was using.

[v-yuta-msft · Accepted solution]

@Anonymous ,

Could you share some sample of the R script code? Because this issue should be related to the R script you have input.

Regards,

Jimmy Tao

[Anonymous]

Hi JImmy.. Thank for the feedback to the open question. I have managed to slove the issues. it was an Oracle db issues. the DBA fixed the problem. Not more i can add i'm affaird.