thoughtbot / thoughtbot/dotfiles

Error detected while processing ~/.vimrc: line 176: E474: Invalid argument: diffopt+=vertical

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Description

Hi there,

I'm running Vim 8.1 on macOS Catalina. When I open Vim, I always get this error message.

Error detected while processing ~/.vimrc: line 176: E474: Invalid argument: diffopt+=vertical Press ENTER or type command to continue

Removing the "+" seemed to have silenced the error, but, because I'm a Vim neophyte I'm not convinced that this is the correct solution.

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at vimrc line 176, where the diffopt setting produces E474 in Vim 8.1 on macOS Catalina. Check the supported value and syntax for diffopt, then verify that opening Vim no longer shows the startup error while preserving the intended configuration.

Written by the indexing model from the issue text.

Assessment

Tech stack
vim
Domain
tooling
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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