Vimtex not opening SumatraPDF automatically

Question

I am using Vim 64 bit and have installed Vimtex on Windows 11. I can compile a LaTeX file and changes are shown in the pdf file, but typing \lv does not open my pdf viewer, SumatraPDF.

Here is part of my _vimrc file:

 let g:Tex_DefaultTargetFormat = 'pdf'
 let g:Tex_CompileRule_pdf = 'pdflatex -synctex=1 -interaction=nonstopmode $*'
 let g:Tex_ViewRule_pdf = 'SumatraPDF -reuse-instance' 

I have tried changing letg:Tex_ViewRule_pdf = 'C:\path\to\SumatraPDF -reuse-instance' and have added SumatraPDF to my PATH.

Here is my latexmk output when I run \lo

Win CP console initial and current in/out Win: (437, 437), (1252, 1252)
Coding system for system and terminal: 'CP1252'
---
Rc files read:
  NONE
Latexmk: This is Latexmk, John Collins, 17 Mar. 2022. Version 4.77, version: 4.77.
======= Need to update make_preview_continuous for target files
Not using a previewer
------------
Running 'echo vimtex_compiler_callback_compiling'
------------
vimtex_compiler_callback_compiling
Latexmk: Nothing to do for 'testing.tex'.
Latexmk: All targets (testing.pdf) are up-to-date
------------
Running 'echo vimtex_compiler_callback_success'
------------
vimtex_compiler_callback_success
Win CP console initial and current in/out Win: (437, 437), (1252, 1252)
Coding system for system and terminal: 'CP1252'
---

Thanks!

Answer 1

Using Sumatra

Figured out what the problem was. I replaced everything I used before to:

"Only works if let g:vimtex_view_general_viewer= path\to\sumatrapdf.exe
let g:vimtex_view_general_viewer = 'C:\Users\Pranav\AppData\Local\SumatraPDF\SumatraPDF.exe'
let g:vimtex_view_general_options
                \ = '-reuse-instance -forward-search @tex @line @pdf'

To enable double click in the PDF to go to that spot in the LaTeX file:

1. Go to Sumatra PDF --> Settings --> Options
2. Paste cmd /c start /min "" vim -v --not-a-term -T dumb -c "VimtexInverseSearch %l '%f'" into Set inverse search command-line
3. For more info, use the command :vimtex-synctex-inverse-search

Thanks to @Karl Yngve Lervåg for pointing out that my original settings worked for LaTeX-Suite and not Vimtex + showing where the documentation is!