TS2851: The initializer of an 'await using' declaration must be either an object with a '[Symbol.asyncDispose]()' or '[Symbol.dispose]()' method,...

The error message

The initializer of an 'await using' declaration must be either an object with a '[Symbol.asyncDispose]()' or '[Symbol.dispose]()' method, or be 'null' or 'undefined'.

As listed by TypeScript diagnosticMessages.json

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

Details

Category: Error
Severity: error

TS2850The initializer of a 'using' declaration must be either an object with a '[Symbol.dispose]()' method, or be 'null' or...
TS1066In ambient enum declarations member initializer must be constant expression.
TS1182A destructuring declaration must have an initializer.
TS1189The variable declaration of a 'for...in' statement cannot have an initializer.
TS1190The variable declaration of a 'for...of' statement cannot have an initializer.
TS1263Declarations with initializers cannot also have definite assignment assertions.
TS2432In an enum with multiple declarations, only one declaration can omit an initializer for its first enum element.
TS2651A member initializer in a enum declaration cannot reference members declared after it, including members defined in...

The error message

Details

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