中的错误/node_modules/ng2-pdf-viewer/fesm5/ng2-pdf-viewer.js模块构建失败(来自./node_modules/@angular devkit/build optimizer/src/build optimizer/webpack loader.js(：TypeError:无法读取未定义的属性"kind"位于isAngularDecoratorMetadataExpression(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:265:35(在checkNodeForDecorators(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:77:21(访问节点(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16144:30(在Object.forEachChild(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16370:24(在checkNodeForDecorators(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:68:31(访问节点(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16135:24(在Object.forEachChild(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16265:21(在checkNodeForDecorators(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:68:31(访问节点(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16135:24(在Object.forEachChild(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:1632:24(在checkNodeForDecorators(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:68:31(访问节点(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16135:24(在Object.forEachChild(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:1633:24(在checkNodeForDecorators(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\src\transforms\scrub file.js:68:31(访问节点(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:16135:24(在Object.forEachChild(E:\Mohamed Mostafa Work\new_project\reservation\node_modules@angular-devkit\构建优化器\node_modules\typescript\lib\typescript.js:1629:21(
我得到了同样的错误，但最终用以下解决方案解决了。。Unistall ng2 pdf查看器优先然后安装-npm安装ng2-pdf-viewer@5.3.4
将angular.json中的以下属性设置为false为我解决了问题：
"；buildOptimizer"：false
从根文件夹中删除package-lock.json编辑package.json并将ng2 pdf查看器版本更改为以下
"ng2-pdf-viewer": "5.3.4"
低于命令运行
npm install
npm build --prod
它应该解决问题
经过长时间的搜索，这对我有效。
将@angular devkit/build angular升级到版本："~0.803.19"，然后prod-build运行良好。在package.json.中进行了以下更改
"devDependencies": {
"@angular-devkit/build-angular": "~0.803.19",
...
}
这适用于ng2pdfviewer:6.3.0&角度8.3.19
希望这能有所帮助！
请将您的angular devkit依赖项更改为包中的最新版本。josn文件：
我在下面的依赖项中更改了版本，它与--prod命令一起使用
"devDependencies": { "@angular-devkit/architect": "~0.803.20", "@angular-devkit/build-angular": "~0.803.20", "@angular-devkit/core": "~8.3.20", "@angular-devkit/schematics": "~8.3.20", }
这个解决方案像魅力一样工作：(
导航到您的应用程序文件夹并首先运行npm i命令，您似乎错过了十几个包
尝试删除node_modules文件夹，然后运行npm i
较低版本的ng2 pdf查看器适用于我的