unix vim Error detected while processing BufRead Auto commands

Question

I am a new vim user following this guide to make vim indent python code automatically and flag unnecssary whitespace: https://realpython.com/blog/python/vim-and-python-a-match-made-in-heaven/#vim-extensions

The issue I have is receiving this error when I start up vim on a .py file: Error detected while processing BufRead Auto commands for "*.py": E28: No such highlight group name: BadWhitespace

This error I comment out the following lines:

" Flag unnecessary whitespace                                           
au BufRead,BufNewFile *.py,*.pyw,*.c,*.h match BadWhitespace /\s\+$/   <- this line   

" UTF8 Support                                                          
set encoding=utf-8                                                      
" Proper PEP8 Identation                                                
au BufNewFile,BufRead *.py                                              
    \ set tabstop=4                                                     
"    \ set softtabstop=4      <-- this line                                          
    \ set shiftwidth=4                                                  
    \ set textwidth=79                                                  
    \ set expandtab                                                     
    \ set autoindent                                                    
    \ set fileformat=unix         

How can I fix this error? This is my complete .vimrc file:

set nocompatible              " required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=/home/frank/.vim/bundle/Vundle.vim
call vundle#begin()

" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'

" add all your plugins here (note older versions of Vundle
" used Bundle instead of Plugin)
Plugin 'tmhedberg/SimpylFold'
Plugin 'vim-scripts/indentpython.vim'
Bundle 'Valloric/YouCompleteMe'
Plugin 'vim-syntastic/syntastic'
Plugin 'nvie/vim-flake8'
Plugin 'jnurmine/Zenburn'
Plugin 'altercation/vim-colors-solarized'
Plugin 'scrooloose/nerdtree'
Plugin 'jistr/vim-nerdtree-tabs'
Plugin 'kien/ctrlp.vim'
Plugin 'tpope/vim-fugitive'
Plugin 'Lokaltog/powerline', {'rtp': 'powerline/bindings/vim/'}
" ...

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required

" Split navigations
nnoremap <C-J> <C-W><C-J>
nnoremap <C-K> <C-W><C-K>
nnoremap <C-L> <C-W><C-L>
nnoremap <C-H> <C-W><C-H>

" Enable folding
set foldmethod=indent
set foldlevel=99
" Enable folding with the spacebar
nnoremap <space> za
" See docstrings for folded code
let g:SimpylFold_docstring_preview=1

" Flag unnecessary whitespace
au BufRead,BufNewFile *.py,*.pyw,*.c,*.h match BadWhitespace /\s\+$/      <-this line

" UTF8 Support
set encoding=utf-8
" Proper PEP8 Identation        <-this line
au BufNewFile,BufRead *.py
    \ set tabstop=4
"    \ set softtabstop=4 
    \ set shiftwidth=4
    \ set textwidth=79
    \ set expandtab
    \ set autoindent
    \ set fileformat=unix

" For Full stack development 'au' command
"au BufNewFile,BufRead *.js, *.html, *.css
"    \ set tabstop=2
"    \ set softtabstop=2
"    \ set shiftwidth=2

" YouCompleteMe plugin customization
let g:ycm_autoclose_preview_window_after_completion=1
map <leader>g  :YcmCompleter GoToDefinitionElseDeclaration<CR>

"python with virtualenv support
py << EOF
import os
import sys
if 'VIRTUAL_ENV' in os.environ:
  project_base_dir = os.environ['VIRTUAL_ENV']
  activate_this = os.path.join(project_base_dir, 'bin/activate_this.py')
  execfile(activate_this, dict(__file__=activate_this))
EOF

" Makes python code pretty
let python_highlight_all=1
syntax on

" Adds a bit of logic to define which color scheme to use based upon VIM mode
if has('gui_running')
  set background=dark
  colorscheme solarized
else
  colorscheme zenburn
endif

" Press F5 to toggle between dark and light theme
call togglebg#map("<F5>")

" Hybrid line numbers
:set number relativenumber
:augroup numbertoggle
:  autocmd!
:  autocmd BufEnter,FocusGained,InsertLeave * set relativenumber
:  autocmd BufLeave,FocusLost,InsertEnter   * set norelativenumber
:augroup END

set pastetoggle=<F10>

Answer 1

There is a simpler solution. You see I had ran into same problem and after this little trick there was no error message and everything is working as it should.

Trick is, BufNewFile,BufRead should be seperated by a space. So the line should look like

au BufNewFile, BufRead *.py

and not au BufNewFile,BufRead *.py best regards

Answer 2

The problem is the multiple sets. The first set from this line:

\ set tabstop=4

is the command, and all the following sets are treated as arguments.

It should look like this:

au BufNewFile,BufRead *.py
    \ set tabstop=4
    \ softtabstop=4
    \ shiftwidth=4
    \ textwidth=79
    \ expandtab
    \ autoindent
    \ fileformat=unix