Resolved: coloring the bars

Hello Eli, thank you for your lesson! I would sincerely appreciate it if you help me with the following issue:
Regarding the coloring of the bars, I typed:

plt.figure(figsize = (9 , 8))
plt.bar(x = df_used_cars["Brand"],
       height = df_used_cars["Cars Listings"],
       color = "grbgrbgrbb")
plt.xticks(rotation = 45)
plt.show()

However I got the following output and error:

ValueError                                Traceback (most recent call last)
~\AppData\Local\Temp\ipykernel_13440\1396978304.py in <module>
      1 plt.figure(figsize = (9 , 8))
----> 2 plt.bar(x = df_used_cars["Brand"],
      3        height = df_used_cars["Cars Listings"],
      4        color = "grbgrbgrbb")
      5 plt.xticks(rotation = 45)

~\anaconda3\lib\site-packages\matplotlib\pyplot.py in bar(x, height, width, bottom, align, data, **kwargs)
   2397         x, height, width=0.8, bottom=None, *, align='center',
   2398         data=None, **kwargs):
-> 2399     return gca().bar(
   2400         x, height, width=width, bottom=bottom, align=align,
   2401         **({"data": data} if data is not None else {}), **kwargs)

~\anaconda3\lib\site-packages\matplotlib\__init__.py in inner(ax, data, *args, **kwargs)
   1410     def inner(ax, *args, data=None, **kwargs):
   1411         if data is None:
-> 1412             return func(ax, *map(sanitize_sequence, args), **kwargs)
   1413 
   1414         bound = new_sig.bind(ax, *args, **kwargs)

~\anaconda3\lib\site-packages\matplotlib\axes\_axes.py in bar(self, x, height, width, bottom, align, **kwargs)
   2354         linewidth = itertools.cycle(np.atleast_1d(linewidth))
   2355         hatch = itertools.cycle(np.atleast_1d(hatch))
-> 2356         color = itertools.chain(itertools.cycle(mcolors.to_rgba_array(color)),
   2357                                 # Fallback if color == "none".
   2358                                 itertools.repeat('none'))

~\anaconda3\lib\site-packages\matplotlib\colors.py in to_rgba_array(c, alpha)
    357 
    358     if isinstance(c, str):
--> 359         raise ValueError("Using a string of single character colors as "
    360                          "a color sequence is not supported. The colors can "
    361                          "be passed as an explicit list instead.")

ValueError: Using a string of single character colors as a color sequence is not supported. The colors can be passed as an explicit list instead.