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Dear All. I am getting bellow error while opening Microsoft Report.  VS 2019, MVC. Please any body can help me?

 

An unhandled exception occurred while processing the request.

ArgumentException: Format of the initialization string does not conform to specification starting at index 0.

System.Data.Common.DbConnectionOptions.GetKeyValuePair(string connectionString, int currentPosition, StringBuilder buffer, bool useOdbcRules, out string keyname, out string keyvalue)

ReportProcessingException: Query execution failed for dataset 'DataSet1'.
Format of the initialization string does not conform to specification starting at index 0.

AspNetCore.ReportingServices.OnDemandProcessing.RuntimeLiveQueryExecutor.ExecuteReader(IJobContext jobContext, DataSourceErrorInspector errorInspector, string commandText)

ProcessingAbortedException: An error has occurred during report processing.
Query execution failed for dataset 'DataSet1'.
Format of the initialization string does not conform to specification starting at index 0.

AspNetCore.ReportingServices.OnDemandProcessing.AbortHelper.ThrowIfAborted(CancelationTrigger cancelationTrigger, string uniqueName)

LocalProcessingException: An error occurred during local report processing.;An error has occurred during report processing.
Query execution failed for dataset 'DataSet1'.
Format of the initialization string does not conform to specification starting at index 0.

AspNetCore.Reporting.InternalLocalReport.InternalRender(string format, bool allowInternalRenderers, string deviceInfo, PageCountMode pageCountMode, CreateAndRegisterStream createStreamCallback, out Warningi] warnings)

Hi @uday_oman,

It would be easier for the community members to help you better if you can explain the issue you are experiencing in more detail. Including the following information will help. 

  1. Type of report (SSRS operational/quick report)
  2. How the data source has been configured (For SSRS, using the reporting web service/shared data source using oracle)

Thanks,

Kasun

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