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Previously I can conveniently generate slides with knitr R from .rmd file. But this time I came across an error as listed below (it even doesn't work for the default .rmd file), does anyone know what's wrong with this, I have reinstall Rstudio, but it seems not work. My OS is MAC OS 10.9 and R version is 3.2.2 (2015-08-14).

Error in stri_locate_all_regex(string, pattern, omit_no_match = TRUE, : object 'C_stri_locate_all_regex' not found Calls: ... parse_inline -> -> stri_locate_all_regex Execution halted

Mahsum Akbas
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johnsonzhj
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    Restart your Rstudio; Update all your R packages and see how it goes? – Hao Nov 08 '15 at 15:04
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    You should try to reinstall to `stringi` package, see [this related question](http://stackoverflow.com/questions/33306592/object-c-stri-join-not-found-using-knitr-in-rstudio). – CL. Nov 08 '15 at 15:08
  • Nice, I've tried, it works by reinstalling stringi! – johnsonzhj Nov 08 '15 at 15:24

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