Hi all, I'm trying to make a multi plot and I'm getting an error that I'm not sure how to fix. I'd appreciate any help you could give. I've pasted the error and script below. I'm not sure I understand what the issue is that it is complaining about. What is engineVals? I used this script with the old version of yt, although I made a few changes to get it to work with the new repository. Here is the error: yt INFO 2010-10-21 13:06:28,094 Getting the binary hierarchy yt INFO 2010-10-21 13:06:28,488 Finished with binary hierarchy reading yt INFO 2010-10-21 13:07:07,696 Max Value is 1.42629e-28 at 0.5039215087890625 0.5306854248046875 0.5584259033203125 in grid EnzoGrid_2576 at level 8 (16, 15, 6) yt INFO 2010-10-21 13:07:07,698 Created plot collection with default plot-center = [0.5039215087890625, 0.5306854248046875, 0.5584259033203125] Traceback (most recent call last): File "multi_plot_25kpc.py", line 14, in <module> fig, axes, colorbars = get_multi_plot( 2, 1, colorbar=orient, bw = 4) File "/share/home/01112/tg803911/yt_new/yt/yt/visualization/plot_collection.py", line 1672, in get_multi_plot fig.set_canvas(be.engineVals["canvas"](fig)) NameError: global name 'be' is not defined Here is the script that produced it: from yt.mods import * from yt.visualization.api import PlotCollection import matplotlib.colorbar as cb fn = "DD0060/output_0060" orient = 'horizontal' pf = load(fn) pc = PlotCollection(pf) fig, axes, colorbars = get_multi_plot( 2, 1, colorbar=orient, bw = 4) #Density p = pc.add_projection("Density",0,figure = fig, axes = axes[0][0], use_colorbar=False) p.set_cmap("bds_highcontrast") p.set_zlim(8*10**(-6),10**(-3)) #Temperature p = pc.add_projection("Temperature", 0, weight_field="Density",figure=fig, axes=axes[0][1], use_colorbar=False) p.set_cmap("hot") p.set_zlim(500,20000) pc.set_width(25.0, 'kpc') for p, cax in zip(pc.plots, colorbars): cbar = cb.Colorbar(cax, p.image, orientation=orient) p.colorbar = cbar p._autoset_label() fig.savefig("%s_z_25kpc" % pf)