我正在尝试将现有的大量React项目转换为TypeScript。
我有webpack 2.7.0，ts-loader 3.5.0，typescript 2.9.2，source-map-loader 0.2.3和{{1 }}和react。
这是我的react-dom
tsconfig.json这是我的{
"compilerOptions": {
"outDir": "./dist/", // path to output directory
"sourceMap": true, // allow sourcemap support
"strictNullChecks": true, // enable strict null checks as a best practice
"module": "es6", // specify module code generation
"jsx": "react", // use typescript to transpile jsx to js
"target": "es5", // specify which target of JavaScript should be emitted from the given TypeScript
"allowJs": true // allow a partial TypeScript and JavaScript codebase
},
"include": [
"./src/"
]
}
webpack.config.js运行module: {
rules: [
{
test: /\.(t|j)sx?$/,
exclude: /node_modules/,
loader: 'ts-loader'
},
{ enforce: "pre", test: /\.js$/, loader: "source-map-loader" },
...other stuff for css-loader and url-loader
时，我得到：
npm start在开始我的TypeScript迁移之前，此版本有效，但现在不行。我还没有任何ERROR in ./src/app/index.js
Module build failed: Error: Debug Failure. False expression.
at getJSDocTags (C:\Path\to\nodemodules\typescript\lib\typescript.js:13197:22)
at getFirstJSDocTag (C:\Path\to\nodemodules\typescript\lib\typescript.js:13205:24)
at Object.getJSDocType (C:\Path\to\nodemodules\typescript\lib\typescript.js:13173:19)
at getContextualSignature (C:\Path\to\nodemodules\typescript\lib\typescript.js:41002:32)
at checkFunctionExpressionOrObjectLiteralMethod (C:\Path\to\nodemodules\typescript\lib\typescript.js:44621:43)
at checkExpressionWorker (C:\Path\to\nodemodules\typescript\lib\typescript.js:45681:28)
at checkExpression (C:\Path\to\nodemodules\typescript\lib\typescript.js:45609:42)
at checkExpressionCached (C:\Path\to\nodemodules\typescript\lib\typescript.js:45457:38)
at getWidenedTypeFromJSSpecialPropertyDeclarations (C:\Path\to\nodemodules\typescript\lib\typescript.js:30757:46)
at getTypeOfVariableOrParameterOrProperty (C:\Path\to\nodemodules\typescript\lib\typescript.js:31032:28)
at getTypeOfSymbol (C:\Path\to\nodemodules\typescript\lib\typescript.js:31242:24)
at checkPropertyAccessExpressionOrQualifiedName (C:\Path\to\nodemodules\typescript\lib\typescript.js:42338:53)
at checkPropertyAccessExpression (C:\Path\to\nodemodules\typescript\lib\typescript.js:42293:20)
at checkExpressionWorker (C:\Path\to\nodemodules\typescript\lib\typescript.js:45663:28)
at checkExpression (C:\Path\to\nodemodules\typescript\lib\typescript.js:45609:42)
at checkBinaryLikeExpression (C:\Path\to\nodemodules\typescript\lib\typescript.js:45155:29)
@ multi (webpack)-dev-server/client?http://0.0.0.0:8080 webpack/hot/dev-server ./src/app/index.js
或ts文件。一切都只是tsx / js。
任何帮助将不胜感激。
答案 0 :(得分：1)
我刚才遇到了完全相同的问题，找不到任何文档可以帮助我。看起来像2.9中的Typescript错误。
尝试升级typescript @ next（今天是3.0.0-dev.20180703）。那使我无法接受！