# Chapter 7 Troubleshooting

In this chapter we will try to solve problems that may affect many users.

If you think your problem qualifies and is not there, please leave us an issue on GitHub or send us an email.

## I cannot install Cairo but I need to save my plots

If you really don’t manage to use Cairo (or if you don’t want to use it), you can always use the simple out-of-the-box alternative offered by R. You just need to use different function calls corresponding to the one we described in section 3.7.3:

• CairoPNG() –> png()

• CairoPDF() –> pdf()

Nothing else changes, the inputs should be the same and you still need to close the graphic device using dev.off() after ploting.

[more to come]