Auto complete and explainError

[bugb]

Neovim version (nvim -v)

v0.9.4

Operating system/version

Arch Linux

Output of :checkhealth rustaceanvim

==============================================================================
rustaceanvim: require("rustaceanvim.health").check()

Checking for Lua dependencies ~
- WARNING dap not installed. Needed for debugging features [mfussenegger/nvim-dap](https://github.com/mfussenegger/nvim-dap)

Checking external dependencies ~
- OK rust-analyzer: found rust-analyzer 1 (21b06c1be 2023-12-15)
- OK Cargo: found cargo 1.65.0 (4bc8f24d3 2022-10-20)
- OK rustc: found rustc 1.65.0 (897e37553 2022-11-02)

Checking config ~
- OK No errors found in config.

Checking for conflicting plugins ~
- OK No conflicting plugins detected.

How to reproduce the issue

When open any rust file I did not see the autosuggestion.

Here is the example:

use
fn main() {
    println!("Hello, world!");
}

Also command like RustLsp explainError returns

No explainnable errors found

This is the first time I install plugins like rustaceanvim so any help would be appreciated, maybe I missed something for the setup.

Expected behaviour

The plugin should work!

Actual behaviour

It does not work!

The minimal config used to reproduce this issue.

As you can see in the healthcheck section: I have install neovim version > 0.9, rust, rust-analyzer, rustaceanvim.
Here is the everything that changed for my neovim config file.

[mrcjkb]

Hey 👋

Moving up Q&A discussions, as this is highly unlikely to be a bug.

[mrcjkb]

Auto completions

This plugin doesn't add support for auto completions to Neovim.

You have a few choices for that:

• Use Neovim's built-in omni completion, by typing <C-X><C-O> (ctrl+x, then ctrl+o) in insert mode, and using <C-N> and <C-P> to navigate.
  This supports basic LSP completions, but not autocompletion.
• For autocompletion, you need a plugin, for example nvim-cmp + an LSP completion source.

explainError

This is the expected behaviour. explainError looks for error diagnostics that have an error code.
If there are none, it will tell you that there were no explainable errors found.

[bugb]

Thank @mrcjkb for the detailed explaination, I have made it work by run cargo new [project] without install any autocomple/suggestion plugins.

[mrcjkb]

I see, you were in a standalone file...
The latest version of this plugin should work with that, too.

[afifurrohman-id]

Auto completions

This plugin doesn't add support for auto completions to Neovim.

You have a few choices for that:

• Use Neovim's built-in omni completion, by typing <C-X><C-O> (ctrl+x, then ctrl+o) in insert mode, and using <C-N> and <C-P> to navigate.
  This supports basic LSP completions, but not autocompletion.
• For autocompletion, you need a plugin, for example nvim-cmp + an LSP completion source.

explainError

This is the expected behaviour. explainError looks for error diagnostics that have an error code. If there are none, it will tell you that there were no explainable errors found.

Ah finally i found this helpful discussion after a few hours search why i cannot get auto completion :(.

Could you please also add note in README.md it will helpful for someone first started.