Compiler expected a valid identifier to follow a colon (:) in the function signature but found something else.
E.g. consider this example:
function foo(value: )value parameter must have a type, so the compiler expected something like:
function foo(value: int)- add one of the known types after the colon:
function foo(value: int)
function bar: float- if a function does not have any arguments, use empty braces
()or omit them entirely:
function foo()
function bar