Bug summary

Saving matplotlib polar plots on Windows 7 and Windows 10, with MiKTex 2.9.7.000, fails for some formats (e.g., pdf, svg) and works for others (e.g., png, jpg)

Code for reproduction

importmatplotlib.pyplotaspltimportmatplotlibasmplmpl.rcParams['text.usetex']=Trueplt.figure()ax=plt.subplot(111,polar=True)plt.savefig('foo.png')# Worksplt.savefig('foo.jpg')# Worksplt.savefig('foo.tif')# Works# plt.savefig('foo.pdf')  # Fails# plt.savefig('foo.svg')  # Failsplt.show()

Actual outcome

"Error saving .... " window pops up with error code b'tcss1000' for pdf, and b'tcss3583' for svg. (The numbers change)

Matplotlib version

• Operating system: Windows 7 & 10
• Matplotlib version: 2.2.2 or 3.0.3
• Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg
• Python version: 3.6
• Jupyter version (if applicable): N/A
• Other libraries: N/A

Installed via Anaconda3