Bug report

Bug summary

Key axes.prop_cycle: Unknown artist properties: {'markevery'}

Code for reproduction

# Paste your code here
import matplotlib
from cycler import cycler
matplotlib.rcParamsDefault['axes.prop_cycle']=cycler(markevery=[8])

Actual outcome

ValueError: Key axes.prop_cycle: Unknown artist properties: {'markevery'}

Expected outcome

Default markevery cycle.

Matplotlib version

• Operating System: Ubuntu 14.04
• Matplotlib Version: 2.0.0
• Python Version: 3.4
• Jupyter Version (if applicable):
• Other Libraries:

No error for matplotlib 1.5