[R-SIG-Mac] graphics problem from Macintosh system software

[Richard M. Heiberger]

This has been reported before.  I am still seeing it with R-3.2.3.
It appears randomly.  It sounds scary.

Rich

>
Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
CGContextSetFont: invalid context 0x7fb698259080. This is a serious
error. This application, or a library it uses, is using an invalid
context  and is thereby contributing to an overall degradation of
system stability and reliability. This notice is a courtesy: please
fix this problem. It will become a fatal error in an upcoming update.
Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
CGContextSetFontSize: invalid context 0x7fb698259080. This is a
serious error. This application, or a library it uses, is using an
invalid context  and is thereby contributing to an overall degradation
of system stability and reliability. This notice is a courtesy: please
fix this problem. It will become a fatal error in an upcoming update.
Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
CGContextGetFont: invalid context 0x7fb698259080. This is a serious
error. This application, or a library it uses, is using an invalid
context  and is thereby contributing to an overall degradation of
system stability and reliability. This notice is a courtesy: please
fix this problem. It will become a fatal error in an upcoming update.
p