Replication (k=1) in LRC

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Hi,
I'm working on various implementation of LRC codes for study purposes. The layers implementation in the LRC module is very convenient for this, but I've came upon a problem in one of the cases.
I'm interested in having k=1, m=1 in one of the layers. However this gives out an error:
Error EINVAL: k=1 must be >= 2

I should point out that my erasure code has additional layers which are fine, only this one has k=1, m=1.

What was the reason for this issue?
Can replication be implemented in one of LRC's layers?

Thanks
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