Eclipse "Install missing rls component in rustup"

I’m new to Rust, and have just installed it on my Windows 10 computer. I’m now trying to set up Eclipse 2019-03 for Rust use. I’ve installed Rust support, but I keep getting a message telling me to “Install missing rls component in rustup”. How do I do that?

Thanks.

From command line, you need to run

rustup component add rls

I tried that. I got:

C:\Users\digit>rustup component add rls
error: component ‘rls’ for target ‘x86_64-pc-windows-msvc’ is unavailable for download for channel ‘nightly’
If you require these components, please install and use the latest successful build version,
which you can find at https://rust-lang-nursery.github.io/rust-toolstate.

After determining the correct date, install it with a command such as:

rustup toolchain install nightly-2018-12-27

Then you can use the toolchain with commands such as:

cargo +nightly-2018-12-27 build

I can’t work out how to get “the correct date”.

Does Eclipse require specifically Rust nightly? The nightly versions have a problem that sometimes rls is missing (you can try yesterday’s date, date before yesterday, etc.).

If Eclipse works with stable, then the best solution is:

rustup default stable
rustup component add rls

I think the nightly was because I was following the instructions I found here. Your version works, thanks!