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tweidner's avatar
tweidner
Icon for Helper I rankHelper I
5 years ago
Solved

COM error: mscorlib, An item with the same key has already been added..

Hi everyone,   your help on the following issue would be highly appreciated:   I have a report sitting on PBI Report Server, which has a scheduled set up to refresh every 24hrs - no issues. Afte...
COM Error
Report Server
  • tweidner's avatar
    tweidner
    5 years ago

    I've now appended the data sources at BW level to get the measures and attributes I'm looking for.

    Therefore I don't have to append two BW datasets at PBI query level anymore.

     

    Thank you for your replies!

xantari's avatar
xantari
Icon for Helper II rankHelper II
5 years ago

I'm also getting this error since October 2020 update.

 

Installed latest hotfix from 1/8/2021 on server and Power BI Desktop application.

 

Still getting this:

SessionID: 2a175ab7-a51c-4407-b3ee-24b65784210e
[0] -1056505856: COM error: Microsoft.PowerBI.ReportServer.ASEngineManagedRoot, An item with the same key has already been added..
[1] -1055784828: The database operation was cancelled because of an earlier failure.
[2] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[3] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[4] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[5] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.
[6] -1056505856: COM error: Microsoft.PowerBI.ReportServer.ASEngineManagedRoot, An item with the same key has already been added..
[7] -1056505856: COM error: Microsoft.PowerBI.ReportServer.ASEngineManagedRoot, An item with the same key has already been added..