When I put a stacked bar chart in a single report it works fine without any error but when I put the same report as a sub report then I get "category series name is null"error. I don't know how to solve this.
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When I put a stacked bar chart in a single report it works fine without any error but when I put the same report as a sub report then I get "category series name is null"error. I don't know how to solve this.
