Puzzling error message

didiergmdidiergm
edited 8:40PM in FastReport 4.0
Trying to print an invoice; Report has always worked beautifully; on one machine I get this error message,

for fun : not always with the same invoice; not always at the same time; closing down the program does not always work; sometimes work for a day, sometimes fails on first attempt; has never occured on any of my machines , from delphi of standalone .... connected to the same database ....

How could I possibly know which objects on the report is not being happy to help track down what could be wrong ?

thanks in advance
Didier

Comments

  • gordkgordk St.Catherines On. Canada.
    edited 8:40PM
    i would suspect that a field used in a calc or expression is returning a null value.
  • didiergmdidiergm
    edited 8:40PM
    I would think so, but how to know which one ? (I have got a fair number of fields and this issue does not happen on my machine (with identical invoice, database etc ....)

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