dev.copy() results in Error in device(...) : unable to start png() device

[thule]

Who can help?
curve(exp(x), from=0, to=1)
dev.copy(png, file = "test.png")

Error in device(...) : unable to start png() device
In addition: Warning messages:
1: In device(...) : unable to open file 'test.png' for writing
2: In device(...) : opening device failed

Should be a piece of cake but I cannot find the error ...
RStudio Version 1.1.453 Windows 10
Works without problem in the WIndows RGUI and Linux, but not in RStudio.
Any help appreciated.

[woodward]

@thule

curve(exp(x), from=0, to=1)
dev.copy(png, file = "test.png")

It works for me. Have you set the working directory properly, for example by creating a project?

Or, try dev.off() a few times to close any old device connections.

Or you might have "test.png" open in another software, and need to close it.

[andresrcs]

You can also try to restart your R session before running your code
Ctrl+Shift+F10

curve(exp(x), from=0, to=1)

dev.copy(png, file = "test.png")
#> png 
#>   3

^{Created on 2019-02-28 by the reprex package (v0.2.1)}

[thule]

Hi woodward,
thanks for your effort, even if I still didn't get it working. I decided to use the R-GUI for saving plots. Not the best solution, but saves me a lot of time ...

[thule]

Hi andresrcs,
unfortunately, this didn't help either. Anyway, thanks for giving me a hint!
Best
Thule