I have that error in SonarQube: Remove the declaration of the unused 'Ico' variable.

And thats my code:

 const icon = {};
 icon[opcaoAvaliacao.Satisfeito] = InsertEmoticonRoundedIcon;
 icon[opcaoAvaliacao.Neutro] = SentimentSatisfiedRoundedIcon;

 const render = () => {
    const Ico = icon[nomeClasse];
    return <Ico className={`iconeDescricao${nomeClasse}`} />;
  };

When I render this way the sonar gives me an error on line 5(const Ico = icon[nomeClasse]).

How do I do this in another way to remove the error?