Hi Pawel Jankowski,
Thanks for contacting Syncfusion support.
From the given error details, it seems that the “createSpinner”
method is called without passing an argument. For further validation, could you
please share the below details that will be helpful for us to provide a better
solution as early as possible?
- Share
the full Grid code example
- Is there
any customer spinner rendered at the sample level?
- Share
the full stack trace of the error
- Share
the Syncfusion package version
Regards,
Pavithra S