Node.js Netlify Lambda函数-生成失败

我正在尝试部署Netlify Lambda函数，但出现以下生成错误：

...
11:00:00 PM: Build script success
11:00:00 PM: Failing build: Failed to build site
11:00:00 PM: failed during stage 'building site': Deploy directory 'build' does not exist

package.json

...
"scripts": {
    "build": "netlify-lambda build src/lambda"
},
...

我遗漏了什么？

尝试在“构建”脚本中添加“纱线”，如下所示：

...
"scripts": {
    "build": "yarn netlify-lambda build src/lambda"
},
...