Error in FUN(X[[i]], ...) : trying to get slot "cell.embeddings" from an object of a basic class ("integer") with no slots

[Yansong-weilab]

when I use Celldimplot,i meet the error:
Error in FUN(X[[i]], ...) : trying to get slot "cell.embeddings" from an object of a basic class ("integer") with no slots
but the Dimplot function in Seurat package can draw normally with no error。
Is it caused by intergrating data by harmony?