character token too long: "identifier"

[dean2021]

$ make all
bin/goyacc -o parser.go -p yy -t Parser parser.y character token too long: "identifier": parser.y:55 Please check y.output for more information make: *** [parser.go] Error 1

Unable to use goyacc to regenerate the parser.go file, I did not modify any content of the parser.y file.