"message": "Read Range: Value cannot be null.\r\nParameter name: String",

Hello, all

I’ve just suddenly encountered below error message.
Since I haven’t faced error before with same excel file. I’m not sure how to resolve it.
Could you please help for finding which is wrong…?
[Error Code]
“message”: “Read Range: Value cannot be null.\r\nParameter name: String”,
[File Name]

[Uipath- error occurred on Read Range]

And also, below error occurred on different read activities.


Possible root cause is on the file extension. Is the file in xlsx format not in xls?

You may check on this too.

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Extension seems like correctly set.
str_arr_HANA is referring .xlsx
str_arr_SMS is referring .xls


Most of the discussions with this issue in the forum is related on using read range activity for .xls file. Maybe you can check using excel app scope.

1 Like

Thank you !! It’s resolved with using Excel Application Scope

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