# Bar Chart Issues After Upgrade to 7.7.1

**URL:** <https://forum.inductiveautomation.com/t/bar-chart-issues-after-upgrade-to-7-7-1/9143>\
**Category:** Ignition\
**Created:** [October 3, 2014, 11:28pm UTC](https://forum.inductiveautomation.com/t/bar-chart-issues-after-upgrade-to-7-7-1/9143 "2014-10-03T23:28:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![cloader](https://avatars.discourse-cdn.com/v4/letter/c/a183cd/32.png) [@cloader](https://forum.inductiveautomation.com/u/cloader)\
**Post date:** [October 3, 2014, 11:28pm UTC](https://forum.inductiveautomation.com/t/bar-chart-issues-after-upgrade-to-7-7-1/9143/1 "2014-10-03T23:28:46Z")

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Bar charts on a project window stopped working after upgrading from 7.6 to 7.7.1. Popup error message states ‘First column must be of type string’ with no details available. Output console message: ‘ERROR [PMIBarChart-AWT-EventQueue-2] First column must be of type string’. Any ideas?

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**Author:** ![intelman07](https://avatars.discourse-cdn.com/v4/letter/i/8e8cbc/32.png) [@intelman07](https://forum.inductiveautomation.com/u/intelman07)\
**Post date:** [November 5, 2014, 3:15pm UTC](https://forum.inductiveautomation.com/t/bar-chart-issues-after-upgrade-to-7-7-1/9143/2 "2014-11-05T15:15:21Z")

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I am also having this problem. Did you ever find a solution?

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**Author:** ![KathyApplebaum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kathyapplebaum/32/7261_2.png) [@KathyApplebaum](https://forum.inductiveautomation.com/u/KathyApplebaum)\
**Post date:** [November 5, 2014, 3:42pm UTC](https://forum.inductiveautomation.com/t/bar-chart-issues-after-upgrade-to-7-7-1/9143/3 "2014-11-05T15:42:56Z")

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This was fixed in 7.7.2-rc1