ts-r
  • Error
  • Reported by the lexer and parser

TS1110

Type expected.

The parser expected a type here but found something else, for example after `:` in an annotation or inside type arguments.

What it means

After : in an annotation, after as, inside <...> type arguments and in a type alias, a type is required. This is reported when that position is empty or holds a token that can't start a type.

Example

index.ts
let value: = 1;
export {};
ts-r-check -p tsconfig.json --pretty false ts-r output
index.ts(1,12): error TS1110: Type expected.

Recorded by node scripts/verify-examples.mjs with ts-r built from commit 6deaf01. The example uses the default tsconfig: strict, target: es2022, module: esnext, moduleResolution: bundler.

How to fix

  • Write the type: let value: number = 1;.
  • If you want the type inferred, remove the : as well.