:CocCommand clangd.install

[trebinor]

I'm following the "Quick Start" guide and have run into problems on the :CocCommand clangd.install step. The guide claims coc-clangd will try to find clangd in my $PATH. I know that clangd is not in my $PATH, but I see no output from :CocInstall coc-clangd that it looked and failed to find it. I only see a single line with a green check that it installed into .config/coc/extensions/node_modules/coc-clangd.

When I run :CocCommand clangd.install to have it fetch the latest release, it returns [coc.nvim] Command: clangd.install not found.

[fannheyward]

You need to open C/C++ files to run :CocCommand clangd.install.

[Roulbac]

I had the same issue, but then it displays the following message and does nothing else

[coc.nvim] clangd was not found on your PATH. :CocCommand clangd.install will install 10.0.0.

[trebinor]

Did you check if it downloaded clangd? It downloaded for me, and I think you're supposed to add the clangd path to your PATH and restart vim. I gave up before I could get it working, because CentOS 7 won't run clangd 10 due to its glibc being too old. I'd happily try an older release without that requirement, but 10.0 seems to be only release posted, not counting pre-releases.

[rodhash]

Had same issue and updating my env variable PATH including the clangd fixed for me.

export PATH=$PATH:/home/rodhash/.config/coc/extensions/coc-clangd-data/install/10.0.0/clangd_10.0.0/bin

[xrisk]

Also had to manually add the installation directory to my PATH. Not sure if this is intended behavior? If so, perhaps we should add it to the readme?

[juanMarinero]

MWE for newbies (like me):

1. create Node project

dir01="$HOME/cocnvim_c"
mkdir $dir01 && cd $dir01
npm init # all default
npm i coc-clangd

2. Add $PATH

cd $HOME/.config/coc/extensions/coc-clangd-data/install/*/clang*/bin && echo $PWD && cd - # copy echo
vim ~/.bashrc  # add line: export PATH=$PATH:[paste echo]

3. test it:

python3.8 -c "print('$PATH'.replace(':','\n'))" | grep -E 'coc|$'  # check it
vim $dir01/main.c

[juanMarinero]

Amend alternative to create a Node project (step 1 of my previous comment):
sudo npm i --global coc-clangd

[CengsBlanky]

I came up with the same problem, but I figured out why, just run :CocConfig, and it opens the config file: coc-settings.json, add clangd.path as folllows:

{
    "clangd.path": "/usr/local/opt/llvm/bin/clangd"
}

or if you installed clangd as coc suggests(:CocCommand clangd.install), the path should be something like this:
$HOME/.config/coc/extensions/coc-clangd-data/install/*/clang*/bin/clangd
make sure clangd is included in the path
as you can see, I use llvm, which already includes clangd, so I do not need to install clangd suggested by coc

[juanMarinero]

Btw: if C/C++ file is NOT Vim-opened through terminal, the ~/.profile should have proper $PATH too: shell configuration files (like ~/.bashrc or /etc/profile) affect only the applications started from shell.