Write Line: Object reference not set to an instance of an object

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While m doing a write line activity to read the row number i m getting this error

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error
error800×600 35.5 KB

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Hi @Swagasmini_Jena

did you assign 0 to rowNumber before loop?

I guess here the rowNumber is null thats why your facing this error try to assign
some row index value to rowNumber before the loop

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can you tell me the steps for it

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Just add one assign activity before the loop starts like this

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but the condition wont satisfy

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1

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how it can increment the next values.

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Hi @Swagasmini_Jena

Remove .tostring from the write line

regards
gulshiyaa

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no removing tostring is not helpful.getting the same error

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this type of error appears when we do not initialize

in this case,initialize rownumber to 0 or 1 before while loop

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HI @Swagasmini_Jena,

1.Please check that the rowNumber value is should not be negative.

2.It should not be double precision value…

Cheers.
Vashisht.

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okay then keep like this

rownumber set default value as 0

If you find it useful mark it as solution and close the thread.

regards
gulshiyaa

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yes done

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error2
thanks

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if the answer works, pls mark it as solution

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why the execution stops immediately without writing the execution time n the statement

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