TS2300: Duplicate identifier问题的解决

Posted 2022-06-09 Jtag特工

TS2300: Duplicate identifier问题的解决

Typescript编译时遇到d.ts中的定义冲突：

tsc -p ./
../../../../../Users/lusin/AppData/Roaming/npm/node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6 - error TS2300: Duplicate identifier 'IteratorResult'.

41 type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
        ~~~~~~~~~~~~~~

  ../node_modules/@types/node/index.d.ts:77:11
    77 interface IteratorResult<T>  
                 ~~~~~~~~~~~~~~
    'IteratorResult' was also declared here.

../node_modules/@types/node/index.d.ts:77:11 - error TS2300: Duplicate identifier 'IteratorResult'.

77 interface IteratorResult<T>  
             ~~~~~~~~~~~~~~

  ../../../../../Users/lusin/AppData/Roaming/npm/node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6
    41 type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
            ~~~~~~~~~~~~~~
    'IteratorResult' was also declared here.


Found 2 errors.

解决方案是在tsconfig.json的compilerOption中加入下面两项：

		"skipLibCheck": true,
		"allowSyntheticDefaultImports": true

完整例子：

	"compilerOptions": 
		"module": "commonjs",
		"target": "es6",
		"outDir": "out",
		"rootDir": "src",
		"sourceMap": true,
		"skipLibCheck": true,
		"allowSyntheticDefaultImports": true
	,
	"include": ["src"],
	"exclude": ["node_modules", ".vscode-test"],