[@type/ember bug] handlebars declare conflict

[xg-wang]

Which package(s) does this problem pertain to?

• @types/ember
• @types/ember__string

Since [email protected] the types field is added in its package.json, so I'm hitting this issue after a yarn upgrade:

node_modules/handlebars/lib/handlebars.d.ts:14:1 - error TS6200: Definitions of the following identifiers conflict with those in another file: Template, escapeExpression, logger, templates, helpers, partials, decorators, SafeString, Visitor, HandlebarsTemplateDelegate, RuntimeOptions, Utils, Handlebars

14 declare namespace Handlebars {
   ~~~~~~~

  node_modules/@types/handlebars/index.d.ts:7:1
    7 declare namespace Handlebars {
      ~~~~~~~
    Conflicts are in this file.

node_modules/@types/handlebars/index.d.ts:7:1 - error TS6200: Definitions of the following identifiers conflict with those in another file: Template, escapeExpression, logger, templates, helpers, partials, decorators, SafeString, Visitor, HandlebarsTemplateDelegate, RuntimeOptions, Utils, Handlebars

7 declare namespace Handlebars {
  ~~~~~~~

  node_modules/handlebars/lib/handlebars.d.ts:14:1
    14 declare namespace Handlebars {
       ~~~~~~~
    Conflicts are in this file.

node_modules/@types/handlebars/index.d.ts:35:9 - error TS2374: Duplicate string index signature.

35         [key: string]: HelperDelegate;
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/@types/handlebars/index.d.ts:155:5 - error TS2374: Duplicate string index signature.

155     [index: string]: HandlebarsTemplateDelegate;
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[xg-wang]

[I] ➜ yarn why @types/handlebars
yarn why v1.10.1
[1/4] 🤔  Why do we have the module "@types/handlebars"...?
[2/4] 🚚  Initialising dependency graph...
[3/4] 🔍  Finding dependency...
[4/4] 🚡  Calculating file sizes...
=> Found "@types/[email protected]"
info Reasons this module exists
   - "@types#ember" depends on it
   - Hoisted from "@types#ember#@types#handlebars"
   ]- Hoisted from "@types#ember#@types#ember__string#@types#handlebars"

[mike-north]

I believe this will be fixed by DefinitelyTyped/DefinitelyTyped#32897

whose tests will start passing w/ the next nightly TS release, now that microsoft/TypeScript#29787 has been merged

[chriskrycho]

Resolved!