Compatibility with MikTex

[raffaem]

I have MikTex with all the packages installed (except for tools which doesn't seem to exist), yet I get

> texPreview::check_requirements()
Warning in check_base_req() :
  missing tex packages needed for texPreview: standalone, xcolor, booktabs, multirow, amsmath, listings, setspace, caption, graphics, tools, psnfss, varwidth, colortbl, epstopdf-pkg, pgf, makeindex
Install missing tex packages? 

1: Yes
2: No

Selection: 1
Warning in tlmgr(c("install", pkgs), usermode, ...) :
  
TeX Live does not seem to be installed. See https://yihui.org/tinytex/.

tlmgr install standalone xcolor booktabs multirow amsmath listings setspace caption graphics tools psnfss varwidth colortbl epstopdf-pkg pgf makeindex
tlmgr update --self
Error: .onLoad failed in loadNamespace() for 'texPreview', details:
  call: system2("tlmgr", args, ...)
  error: '"tlmgr"' not found