"The Esperanto course must be done."

Translation: La kurso de Esperanto farendas.

[Quickfitter]

Is it wrong to say "Endas fari la Esperantan kurson"?

[mizinamo]

In my opinion, no.

[MartinShadock]

We understand it, so why not :-)
From what I have heard, it is however not really common.

@mizinamo: One should have argument before saying that something can’t be done in Esperanto (because adding rules to state that we can’t do something is useless in the process of creating a language: it just makes it more complicated while restricting it...). Why do you say we can’t?

[Miaoumiam]

Unless there's been some editing done in the meantime, mizinamo is saying that "no, it is not wrong to say it that way". He's just answering the question...

[mizinamo]

Precisely.

[AnnaLowenstein]

I agree with you. It is possible to say "Endas fari la Esperantan kurson", and there's no reason at all why one shouldn't.