ValueError: 'c' argument must be a color, a sequence of colors, or a sequence of numbers, not TGCACCTTCAGCTGGC-3

[yejg2017]

When I run the code ,st.subwaymap_plot_gene(adata,root='S0',genes=['CD8A']) ,I got the error: ValueError: 'c' argument must be a color, a sequence of colors, or a sequence of numbers, not TGCACCTTCAGCTGGC-3 And I checked the CD8A actually in adata object,and my data is from 10X