Column 'NOMOR' does not belong to table DataTable

Hi everyone,
i’m trying to extract data using Uipath studio 2021.4.4 from 2 web columns to excel. however i keep bumping into the same error


Source: kopinomor

Message: Exception has been thrown by the target of an invocation.

Exception Type: System.Reflection.TargetInvocationException

RemoteException wrapping System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> RemoteException wrapping System.ArgumentException: Column ‘NOMOR’ does not belong to table DataTable.
at System.Data.DataRow.GetDataColumn(String columnName)
at System.Data.DataRow.set_Item(String columnName, Object value)
— End of inner exception stack trace —

the data im trying to retrieve and store to excel is this:

the error appears on “kopinomor” and “Assign” section.

any assistance is much appreciated!

project and excel:

IMB VX.xaml (49.7 KB)

dr rizki.xlsx (73.6 KB)


It’s because you read data from only column A.


Can you try to set “” at Range proerty of Read Range activity?


thanks @Yoichi it worked like a charm.
however there’s another complication since the web column some times came out empty such as this screen shoot (the red shade indicates the data is empty/not found):

detail error message

is there any way i can get around this and continue with the process?



As one of general ways, just before GetText activty, check if data exists and/or error message exists using ElementExists activity etc. If there is no data, process next record using Continue activity.


ok, thanks for your help and sorry for the late reply.


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