Error while running report in 10g

[neeraj.singh]

Hi To all
I am trying to call a report from form in 10 g but after calling the i am getting an error which i have given below
"Terminated with error: <br>REP-536870981: Internal error REP-62204: Internal error writing the image BandCombine: a row of the matrix does not have the correct number of entries, should be OpImage.getExpandedNumBands(source0.getSampleModel(), source0.getColorModel()) + 1.. REP-0069: Internal error REP-50125: Caught exception: java.lang.NullPointerException REP-0002: Unable to retrieve a string from the Report Builder message file. REP-536870981: "

Please help me how could i resolve this problem

[neeraj.singh]

I think you are trying to print certain image on your report which is having GIF. ext try to use JPG ext. or make the vetical elasticity and horizontal elasticity as fixed instead of variable.
This would solve your problem.