'siteTitle' is declared but its value is never read.

'speakers' is declared but its value is never read.

'_l' is possibly 'null'.

Property 'publicUrl' does not exist on type '{ readonly publicURL: string | null; readonly childImageSharp: { readonly gatsbyImageData: IGatsbyImageData; } | null; }'. Did you mean 'publicURL'?

'end' is declared but its value is never read.

'end' is declared but its value is never read.