data slot is empty

[Shamimashrafiyan91]

Hi,
I made a Seurat object from my count matrix, the problem is there is no data slot, for example for "pbmc_small", you can find data slot through pbmc_small@assays[["RNA"]]@DaTa, but mine doesn't have it. is it possible to add it?
my purpose is finding Findmarkers for the mentioned object but I get this error:

Warning: No layers found matching the search pattern provided
Error in h(simpleError(msg, call)) :
error in evaluating the argument 'x' in selecting a method for function 'rowSums': subscript out of bounds
In addition: Warning messages:
1: Layer ‘data’ is empty
2: Layer ‘data’ is empty

I would appreciate it if you could help me.

[Shamimashrafiyan91]

Actually, I used version 3 and the problem is fixed now.
options(Seurat.object.assay.version = "v3")