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Resource scheduling timeline component
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Scheduler with auto-scheduling and constraints
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Flexible JavaScript event calendar
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Kanban-style task board component
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JavaScript Data GridAG Grid Error #121

Full Error Text

a column you are grouping or pivoting by has objects as values. If you want to group by complex objects then either a) use a `colDef.keyCreator` (see AG Grid docs) or b) to `toString()` on the object to return a key
To show this error text in the dev console, enable development validations .

The following documentation pages should provide additional context / guidance on how to resolve this error.