Error(s) in re-building vignettes:
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Loading required package: mlt
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Loading required package: maxLik
Loading required package: miscTools

Please cite the 'maxLik' package as:
Henningsen, Arne and Toomet, Ott (2011). maxLik: A package for maximum likelihood estimation in R. Computational Statistics 26(3), 443-458. DOI 10.1007/s00180-010-0217-1.

If you have questions, suggestions, or comments regarding the 'maxLik' package, please use a forum or 'tracker' at maxLik's R-Forge site:
https://r-forge.r-project.org/projects/maxlik/
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Attaching package: 'flexsurv'

The following objects are masked from 'package:eha':

    Hgompertz, Hllogis, Hlnorm, Hweibull, dgompertz, dllogis,
    hgompertz, hllogis, hlnorm, hweibull, pgompertz, pllogis,
    qgompertz, qllogis, rgompertz, rllogis

Loading required package: grid

Attaching package: 'grid'

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Attaching package: 'TH.data'

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kpsewhich: major issue: So far, you have not checked for updates as a MiKTeX user.
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Error: processing vignette 'mlt.Rnw' failed with diagnostics:
there is no package called 'AER'
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SUMMARY: processing the following file failed:
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Error: Vignette re-building failed.
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