* using log directory 'd:/RCompile/CRANincoming/R-devel/vectorialcalculus.Rcheck'
* using R Under development (unstable) (2025-10-22 r88967 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.2.0
    GNU Fortran (GCC) 14.2.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'vectorialcalculus/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'vectorialcalculus' version '1.0.0'
* package encoding: UTF-8
* checking CRAN incoming feasibility ... NOTE
Maintainer: 'Julian Mauricio Fajardo <julian.fajardo1908@gmail.com>'

New submission

Package has a VignetteBuilder field but no prebuilt vignette index.

Found the following (possibly) invalid URLs:
  URL: https://github.com/tuusuario/vectorialcalculus
    From: man/vectorialcalculus.Rd
    Status: 404
    Message: Not Found
  URL: https://github.com/tuusuario/vectorialcalculus/issues
    From: man/vectorialcalculus.Rd
    Status: 404
    Message: Not Found
* checking package namespace information ... OK
* checking package dependencies ... INFO
Vignette dependency required without any vignettes: 'knitr'
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'vectorialcalculus' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... NOTE
Non-standard file/directory found at top level:
  'builds'
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [14s] OK
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking examples ... OK
* checking for unstated dependencies in 'tests' ... OK
* checking tests ... OK
  Running 'testthat.R'
* checking PDF version of manual ... [10s] WARNING
LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
! LaTeX Error: Unicode character ∇ (U+2207)
               not set up for use with LaTeX.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.782 Evaluates, at a candidate point \eqn{x^\*}{}
                                                  , the Lagrange conditions ...
! Missing } inserted.
<inserted text> 
                }
l.782 Evaluates, at a candidate point \eqn{x^\*}{}
                                                  , the Lagrange conditions ...
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.818 At \eqn{x^\*}{}
                     , with Jacobian \eqn{J = \nabla g(x^\*)}{} (m\eqn{\time...
! Missing } inserted.
<inserted text> 
                }
l.818 At \eqn{x^\*}{}
                     , with Jacobian \eqn{J = \nabla g(x^\*)}{} (m\eqn{\time...
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.818 ... with Jacobian \eqn{J = \nabla g(x^\*)}{}
                                                   (m\eqn{\times}{}n) and
! Missing } inserted.
<inserted text> 
                }
l.818 ... with Jacobian \eqn{J = \nabla g(x^\*)}{}
                                                   (m\eqn{\times}{}n) and
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.819 \eqn{H_f = \nabla^2 f(x^\*)}{}
                                    , \eqn{H_{g_i} = \nabla^2 g_i(x^\*)}{}, ...
! Missing } inserted.
<inserted text> 
                }
l.819 \eqn{H_f = \nabla^2 f(x^\*)}{}
                                    , \eqn{H_{g_i} = \nabla^2 g_i(x^\*)}{}, ...
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.819 ...}{}, \eqn{H_{g_i} = \nabla^2 g_i(x^\*)}{}
                                                  , the Hessian of
! Missing } inserted.
<inserted text> 
                }
l.819 ...}{}, \eqn{H_{g_i} = \nabla^2 g_i(x^\*)}{}
                                                  , the Hessian of
! Missing { inserted.
<to be read again> 
                   \discretionary 
l.821 ...s \eqn{\nabla f(x^\*) = J^\top \lambda}{}
                                                  . The \strong{bordered Hes...
! Missing } inserted.
<inserted text> 
                }
l.821 ...s \eqn{\nabla f(x^\*) = J^\top \lambda}{}
                                                  . The \strong{bordered Hes...
* checking PDF version of manual without index ... ERROR
* checking HTML version of manual ... NOTE
Found the following math rendering problems:
lagrange_check.Rd:42: Undefined control sequence: \* in x^\*
lagrange_check.Rd:49: Undefined control sequence: \* in x^\*
lagrange_check.Rd:49: Undefined control sequence: \* in J = \nabla g(x^\*)
lagrange_check.Rd:50: Undefined control sequence: \* in ...= \nabla^2 f(x^\*)
lagrange_check.Rd:50: Undefined control sequence: \* in ...\nabla^2 g_i(x^\*)
lagrange_check.Rd:52: Undefined control sequence: \* in \nabla f(x^\*) = J^\top \lam...
* DONE
Status: 1 ERROR, 1 WARNING, 3 NOTEs