install() on Windows should complain more loudly when a package can't be fully unloaded #120

wch opened this Issue Nov 30, 2012 · 1 comment


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wch commented Nov 30, 2012

When a loaded package has a DLL, install() will attempt to overwrite the DLL. This works fine on Unixlike systems, but it fails on Windows, with an error that isn't obvious. In these cases, devtools should try to unload the DLL and/or give a clear warning message.

This problem is unavoidable when a package which devtools depends on (e.g., plyr) has a DLL. It's also unavoidable with current versions of devtools, since devtools itself has a DLL now.


hadley commented Jan 2, 2014

Is this supposed to be filed under plyr?

hadley closed this Jan 2, 2014

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