Error in spread (., Hugo_symbol, value)

[AFP3]

I have downloaded the data for the Cohen TCGA colon cancer tutorial, from both the cBioPortal and from the github repository. I am able to successfully run the code up until importing CNA and RNA data. The issue appears to arise from trying to use the "entrez_to_hugo" function. For both these, I get the issue "Error in spread(., Hugo_Symbol, value): Keys are shared for 29600/7104 rows".

Instead, I get the following venn diagram, which again I think is an issue with calling the "entrez_to_hugo" function.

Any suggestion of action would be much appreciated!

Thank you in advance for your help!