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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 66%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKH%3C/text%3E%3C/svg%3E)
the definition of the report is invalid
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(230.39999999999998, 89%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
Hi @KING, Heather
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Aniya
That's to less information.
Guess: You build the report with a different SSRS version then the SSRS version you use = newer report defintion, which your SSRS don't know and don't support.
Hi @KING, Heather
At run time, the report processor checks whether the report definition (.rdl file) conforms to the schema specified in the namespace declaration at the beginning of the .rdl file. If a problem is detected, "The definition of the report <report name> is invalid" will be reported.
You can refer to this link: https://askgarth.com/blog/how-to-fix-the-ssrs-error-definition-of-this-report-is-not-valid/.
If the answer is helpful, please click Accept Answer and Up-Vote for the same. If you have any questions, please feel free to let me know.
Best regards,
Aniya