Fresh install via packer not working

[jj0b]

Describe the bug

Fresh seemingly successful install with packer, the commands show up but :MarkdownPreview command does nothing.

To Reproduce Steps to reproduce the behavior:

1. Install with packer as per the instructions by placing the following into your plugins.lua file:

use({
    "iamcco/markdown-preview.nvim",
    run = function() vim.fn["mkdp#util#install"]() end,
})

2. Run :PackerInstall and note that markdown-preview has successfully installed
3. Open a .md file
4. Note that if you start to type the :MarkdownPreview command that you can tab complete it, ie this is showing that markdown-preview is indeed installed
5. Execute :MarkdownPreview and notice that nothing happens. No errors, and no preview opens in any browser.

Expected behavior

I expect that when I execute :MarkdownPreview that a preview should open in my browser.

Desktop (please complete the following information):

• OS: I've tried this on two machines, both running macOS 12.5. One of the machines has an M1 chip and the other is Intel. I'm also using kitty and tmux if that is relevant.

[cstsunfu]

I got the same issue.

[yaocccc]

me too

[yaocccc]

:call mkdp#util#install()

can resolve it, but I don't know why packer not run 'cd app && yarn'

[jj0b]

@yaocccc I just tried :call mkdp#util#install() but it just gave an error message that markdown preview couldn't be installed. The thing is that for me, it is already installed. Neovim will even show me the autocompletion of the commands, but :MarkdownPreview just doesn't seem to do anything.

[yaocccc]

cd to plugin dir, cd app && yarn

[jj0b]

@yaocccc I do have a plugin directory next to my init.lua file and lua directory, but I don't have an app directory in there. Is that supposed to be created by packer or are you talking about something/somewhere else?

[yaocccc]

@yaocccc I do have a plugin directory next to my init.lua file and lua directory, but I don't have an app directory in there. Is that supposed to be created by packer or are you talking about something/somewhere else?

I mean

cd ~/.local/share/nvim/site/pack/packer/start/markdown-preview.nvim
cd app && yarn

[jj0b]

Thanks @yaocccc! That worked. :)

[jdhao]

Same issue, related:

https://github.com/iamcco/markdown-preview.nvim/issues/497 https://github.com/iamcco/markdown-preview.nvim/issues/502

[b3z]

Ye by the way there is no error message if yarn is not available.