# Looker Studio: Two similar charts but one generates an error message

**URL:** <https://community.piwik.pro/t/looker-studio-two-similar-charts-but-one-generates-an-error-message/2209>\
**Category:** Reports and working with data\
**Created:** [May 12, 2023, 9:55pm UTC](https://community.piwik.pro/t/looker-studio-two-similar-charts-but-one-generates-an-error-message/2209 "2023-05-12T21:55:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![David\_Culbertson](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/david_culbertson/32/1479_2.png) [@David\_Culbertson](https://community.piwik.pro/u/David_Culbertson)\
**Post date:** [May 12, 2023, 9:55pm UTC](https://community.piwik.pro/t/looker-studio-two-similar-charts-but-one-generates-an-error-message/2209/1 "2023-05-12T21:55:43Z")

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WORKS:  
Chart - time series  
Dimension - month  
Metric - sessions  
Date range - Advanced (today minus 12 months through today minus 1 month)  
Filter - include channel equal to “Search engine”

DOESN’T WORK:  
Chart - time series  
Dimension - month  
Metric - page views  
Date range - Advanced (today minus 12 months through today minus 1 month)  
Filter - include page URL contains /location/  
Error message is “Cannot render chart. Start date is invalid.”

shellyco.piwik.pro

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**Author:** ![Piotrek](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/piotrek/32/160_2.png) [@Piotrek](https://community.piwik.pro/u/Piotrek)\
**Post date:** [May 19, 2023, 11:23am UTC](https://community.piwik.pro/t/looker-studio-two-similar-charts-but-one-generates-an-error-message/2209/2 "2023-05-19T11:23:59Z")

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Hi @David_Culbertson, we’re not able to reproduce this error:

 ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/2X/b/b07516a31b309636d2fc8973e38d8aa5e1abd962.png)

The message looks like a bug on Looker Studio’s side, not in the connector specifically. There are also a couple of differences between the two charts you provided, so I would also recommend checking if any specific setting in the chart is causing this error.

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**Author:** ![David\_Culbertson](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/david_culbertson/32/1479_2.png) [@David\_Culbertson](https://community.piwik.pro/u/David_Culbertson)\
**Post date:** [May 19, 2023, 1:08pm UTC](https://community.piwik.pro/t/looker-studio-two-similar-charts-but-one-generates-an-error-message/2209/3 "2023-05-19T13:08:16Z")

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> [@David\_Culbertson](#):
>
> DOESN’T WORK WITH FILTER REMOVED EITHER:  
> Chart - time series  
> Dimension - month  
> Metric - page views  
> Date range - Advanced (today minus 12 months through today minus 1 month)  
> Error message is “Cannot render chart. Start date is invalid.”

I’m stuck with no apparent solution. I also tried different date ranges.