Hi Lydia,
Thanks for your update.
We have checked your shared script error at our end. But, we are unable to reproduce the issue at our end and it works fine. Based on your shared script errors, we suspect that some duplicate packages might be installed in your ‘@syncfusion’ folder of ‘node_modules’. Please follow the below steps to overcome the reported behaviour.
1. Delete package.lock.json file from your application.
2. Remove the @syncfusion package folder from the node_modules.
3. Use same version for all components in package.json file.
4. Then install the new packages.
If you still facing the same problem, kindly share the below details it helps us to resolve your problem ASAP
- Complete schedule and tree view rendering code.
- Whether you use the `eventDragArea` property in your scheduler code.
- Share a issue reproducing sample which would help us to proceed further.
Regards,
Vinitha