TS2705: An async function or method in ES5 requires the 'Promise' constructor. Make sure you have a declaration for the 'Promise' constructor or...

The error message

An async function or method in ES5 requires the 'Promise' constructor.  Make sure you have a declaration for the 'Promise' constructor or include 'ES2015' in your '--lib' option.

As listed by TypeScript diagnosticMessages.json

{0}, {1} and so on are filled in by the compiler.

Details

Category: Error
Severity: error

TS17013Meta-property '{0}' is only allowed in the body of a function declaration, function expression, or constructor.
TS2712A dynamic import call in ES5 requires the 'Promise' constructor. Make sure you have a declaration for the 'Promise'...
TS80002This constructor function may be converted to a class declaration.
TS1055Type '{0}' is not a valid async function return type in ES5 because it does not refer to a Promise-compatible...
TS1089'{0}' modifier cannot appear on a constructor declaration.
TS1092Type parameters cannot appear on a constructor declaration.
TS1093Type annotation cannot appear on a constructor declaration.
TS1250Function declarations are not allowed inside blocks in strict mode when targeting 'ES5'.

The error message

Details

Related errors