could not convert variant of type (null) into type (olestr)

In FastReport VCL 5 this work's, but in FastReport VCL 6 return the title error:


V: string


V := Report.Variables.Variables('Name');



  • PolomintPolomint Australia

    G'day Daniel,

    What action do you want to take if Variables ['Name'] is Null? If you want the variable "V" to be set to an Empty String, you should code for that. 😉

    with Report.Variables do begin

    if IsNull (Variables('Name')) then

       V := EmptyStr // replace by whatever action you require


    V := Variables('Name');


    This is not really a FastReport problem but an outcome of mixing Variants and Strings...

    Cheers, Paul

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