possible reason you may find this nondescript error
TypeError: u is undefined
I was getting this strange error while using KendoGrid which I had used many times before and I couldn't figure out why.
I was simply calling:
On a simple table, nothing special. Turns out it was simply because I had used some <th> in the <tbody>, but it can only be located in the <thead>.
common error in Kendo UI that has a simple solution
TypeError: n.slice is not a function
Is not very clear, but it is pretty simple. You are generally using some sort of AutoComplete, DataGrid, etc. This simply means that you are not returning a collection (JSON), but a layer (or more) up from that collection you want to include. For example, you would be returning this JSON:
When what Kendo is expecting is just this: