Reactjs Asp.net核心页未调用NPM脚本'；启动'；退出 尝试执行以下命令：npm安装-gnpm@latest更新npm，因为它有时会出现错误rm-rf节点_模块以删除现有模块npm缓存清除--强制清除缓存npm install重新安装项目依赖

Asp.net核心页未调用NPM脚本'；启动'；退出

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尝试执行以下命令：

npm安装-gnpm@latest

更新npm，因为它有时会出现错误<代码>rm-rf节点_模块以删除现有模块<代码>npm缓存清除--强制清除缓存

npm install

重新安装项目依赖项。

An unhandled exception occurred while processing the request.

AggregateException: One or more errors occurred. (One or more errors occurred. (The NPM script 'start' exited without indicating that the create-react-app server was listening for requests. The error output was: ))

System.Threading.Tasks.Task.ThrowIfExceptional(bool includeTaskCanceledExceptions)

InvalidOperationException: The NPM script 'start' exited without indicating that the create-react-app server was listening for requests. The error output was: 

Microsoft.AspNetCore.SpaServices.ReactDevelopmentServer.ReactDevelopmentServerMiddleware.StartCreateReactAppServerAsync(string sourcePath, string npmScriptName, ILogger logger)