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Specifying TypesScript Version: 2.3 causes "error TS2370: A rest parameter must be of an array type." #270

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kygoh opened this issue Feb 14, 2020 · 2 comments

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@kygoh
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kygoh commented Feb 14, 2020

After following the steps in Add types for a library (not on DefinitelyTyped), I get the following error:

> dtslint types

Error: Errors in typescript@2.8 for external dependencies:
../node_modules/@types/parsimmon/index.d.ts(394,32): error TS2370: A rest parameter must be of an array type.

The index.d.ts file has

// TypeScript Version: 2.3

The problem is resolved when I changed the version to 3.0 in index.d.ts.

// TypeScript Version: 3.0

What can I do to make dtslint work with // Typescript Version: 2.3?

@kygoh kygoh changed the title Errors in typescript@2.8 for external dependencies: Specifying TypesScript Version: 2.3 causes "error TS2370: A rest parameter must be of an array type." Feb 14, 2020
@kygoh
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kygoh commented Feb 14, 2020

Initially, I thought the problem was with @types/parsimmon@1.10.1 and raised issue #42368 in DefinitelyTyped.

Upon further testing, I found that the problem can be resolved without any modification to @types/parsimmon@1.10.1. As described above, by changing to // Typescript Version: 3.0 in index.d.ts.

@EmandM
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EmandM commented Mar 16, 2020

Also looking for a solution to this

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