Error(s) in re-building vignettes:
--- re-building ‘rxode2-syntax.Rmd’ using rmarkdown_notangle
The ODE-based model specification may be coded inside four places: 

- Inside a `rxode2({})` block statements:


``` r
library(rxode2)
#> rxode2 3.0.0 using 1 threads (see ?getRxThreads)
#>   no cache: create with `rxCreateCache()`
#> ========================================
#> rxode2 has not detected OpenMP support and will run in single-threaded mode
#> This is a Mac. Please read https://mac.r-project.org/openmp/
#> ========================================
mod <- rxode2({
  # simple assignment
  C2 <- centr/V2

  # time-derivative assignment
  d/dt(centr) <- F*KA*depot - CL*C2 - Q*C2 + Q*C3;
})
#> using C compiler: ‘Apple clang version 14.0.0 (clang-1400.0.29.202)’
#> using SDK: ‘MacOSX11.3.sdk’
#> ld: warning: could not create compact unwind for ___emutls_get_address: registers 23 and 24 not saved contiguously in frame
```

- Inside a `rxode2("")` string statement:


``` r
mod <- rxode2("
  # simple assignment
  C2 <- centr/V2

  # time-derivative assignment
  d/dt(centr) <- F*KA*depot - CL*C2 - Q*C2 + Q*C3;
")
#> using C compiler: ‘Apple clang version 14.0.0 (clang-1400.0.29.202)’
#> using SDK: ‘MacOSX11.3.sdk’
#> ld: warning: could not create compact unwind for ___emutls_get_address: registers 23 and 24 not saved contiguously in frame
```

- In a file name to be loaded by rxode2:


``` r
writeLines("
  # simple assignment
  C2 <- centr/V2

  # time-derivative assignment
  d/dt(centr) <- F*KA*depot - CL*C2 - Q*C2 + Q*C3;
", "modelFile.rxode2")
mod <- rxode2(filename='modelFile.rxode2')
unlink("modelFile.rxode2")
```
  
- In a model function which can be parsed by `rxode2`:






Quitting from lines 45-84 [modFun] (./../man/rmdhunks/rxode2-create-models.Rmd)

Quitting from lines 29-29 [unnamed-chunk-2] (rxode2-syntax.Rmd)
Error: processing vignette 'rxode2-syntax.Rmd' failed with diagnostics:
<text>:1:1: unexpected '<'
1: <
    ^
--- failed re-building ‘rxode2-syntax.Rmd’

SUMMARY: processing the following file failed:
  ‘rxode2-syntax.Rmd’

Error: Vignette re-building failed.
Execution halted