Error when loading package - unable use library command

I recently downloaded R since I need to use the TraMineR package. After downloading R, I typed

install.packages("TraMineR", dependencies=TRUE)

but when I move on to the library command, I get an error message

R> library(TraMineR)

Error: package or namespace load failed for ‘TraMineR’:
.onLoad failed in loadNamespace() for 'checkmate', details:
call: loadNamespace(name)
error: there is no package called ‘backports’
starting httpd help server ... done

Could someone help me understand this?
Thank you!!


correction courtesy @nirgrahamuk

Hi, thanks for your reply!
Should I type that command before R> library(TraMineR) ?
I'm getting this response
Warning message:
package ‘backport’ is not available (for R version 4.0.2)

Reading your original post, its backports with an s

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