iTOL:Unable to load annotation file

Question

[strive]

Hello: I use iTOL to beautify the tree graph，use the Table2itol.R to get the annotation file, but after loading treefile file, the annotation file could not be put in. Show:"Drop one or more annotation files to visualize them.Make sure to use the template files provided in the help pages". But I check that the annotation file is generated according to the example requirements, can someone help me? Thanks!

ling