Added error for solargraph

vim/vimrc

@@ -29,7 +29,6 @@ Plug 'prabirshrestha/asyncomplete-lsp.vim'
 Plug 'machakann/vim-highlightedyank'
 Plug 'vim-airline/vim-airline'
 Plug 'vim-airline/vim-airline-themes'
-"Plug 'ctrlpvim/ctrlp.vim'
 Plug 'morhetz/gruvbox'
 Plug 'tpope/vim-fugitive'
 Plug 'mhinz/vim-signify'
@@ -47,17 +46,6 @@ let g:airline#extensions#tabline#enabled = 1
 let g:airline_powerline_fonts = 1
 let g:airline#extensions#tabline#formatter = 'unique_tail_improved'
 
-"CtrlP settings
-let g:ctrlp_open_new_file = 'v'
-let g:ctrlp_open_multiple_files = '2v'
-let g:ctrlp_arg_map = 1
-if executable('rg')
-	let g:ctrlp_user_command = 'rg --files %s'
-	let g:ctrlp_use_caching = 1
-	let g:ctrlp_working_path_mode = 'ra'
-	let g:ctrlp_switch_buffer = 'et'
-endif
-
 "LSP stuff
 "Ruby
 if executable('solargraph')
@@ -68,7 +56,12 @@ if executable('solargraph')
 		\ 'initialization_options': {"diagnostics": "true"},
 		\ 'whitelist': ['ruby'],
 		\ })
+else
+	echohl ErrorMsg
+	echom 'Sorry, `solargraph` is not installed. Run `gem install solargraph` once ruby is set up to install.'
+	echohl NONE
 endif
+
 "Rust
 if executable('rls')
     au User lsp_setup call lsp#register_server({