代码构建失败，执行命令时出错：npm install。原因：退出状态 127

Question

我用非常简单的代码创建了一个代码管道并连接到 codecommit。试图构建它，但它在代码构建步骤失败，说明执行 npm install 时出错我是不是遗漏了什么。对不起，我是这个代码构建/代码管道的新手

下面是代码构建失败的日志

[Container] 2019/02/15 11:47:39 Waiting for agent ping 
[Container] 2019/02/15 11:47:40 Waiting for DOWNLOAD_SOURCE 
[Container] 2019/02/15 11:47:40 Phase is DOWNLOAD_SOURCE 
[Container] 2019/02/15 11:47:40 CODEBUILD_SRC_DIR=/codebuild/output/src501317273/src 
[Container] 2019/02/15 11:47:40 YAML location is /codebuild/output/src501317273/src/buildspec.yml 
[Container] 2019/02/15 11:47:40 Processing environment variables 
[Container] 2019/02/15 11:47:40 Moving to directory /codebuild/output/src501317273/src 
[Container] 2019/02/15 11:47:40 Registering with agent 
[Container] 2019/02/15 11:47:40 Phases found in YAML: 1 
[Container] 2019/02/15 11:47:40 BUILD: 2 commands 
[Container] 2019/02/15 11:47:40 Phase complete: DOWNLOAD_SOURCE Success: true 
[Container] 2019/02/15 11:47:40 Phase context status code: Message: 
[Container] 2019/02/15 11:47:40 Entering phase INSTALL 
[Container] 2019/02/15 11:47:40 Phase complete: INSTALL Success: true 
[Container] 2019/02/15 11:47:40 Phase context status code: Message: 
[Container] 2019/02/15 11:47:40 Entering phase PRE_BUILD 
[Container] 2019/02/15 11:47:40 Phase complete: PRE_BUILD Success: true 
[Container] 2019/02/15 11:47:40 Phase context status code: Message: 
[Container] 2019/02/15 11:47:41 Entering phase BUILD 
[Container] 2019/02/15 11:47:41 Running command npm install 
sh: 1: npm: not found 

[Container] 2019/02/15 11:47:41 Command did not exit successfully npm install exit status 127 
[Container] 2019/02/15 11:47:41 Phase complete: BUILD Success: false 
[Container] 2019/02/15 11:47:41 Phase context status code: COMMAND_EXECUTION_ERROR Message: Error while executing command: npm install. Reason: exit status 127 
[Container] 2019/02/15 11:47:41 Entering phase POST_BUILD 
[Container] 2019/02/15 11:47:41 Phase complete: POST_BUILD Success: true 
[Container] 2019/02/15 11:47:41 Phase context status code: Message: 
[Container] 2019/02/15 11:47:41 Expanding base directory path: . 
[Container] 2019/02/15 11:47:41 Assembling file list 
[Container] 2019/02/15 11:47:41 Expanding . 
[Container] 2019/02/15 11:47:41 Expanding artifact file paths for base directory . 
[Container] 2019/02/15 11:47:41 Assembling file list 
[Container] 2019/02/15 11:47:41 Expanding post-saml.yaml 
[Container] 2019/02/15 11:47:41 Skipping invalid artifact path post-saml.yaml 
[Container] 2019/02/15 11:47:41 Expanding beta.json 
[Container] 2019/02/15 11:47:41 Found 1 file(s) 
[Container] 2019/02/15 11:47:41 Phase complete: UPLOAD_ARTIFACTS Success: true 
[Container] 2019/02/15 11:47:41 Phase context status code: Message: 

我的 buildspec.yml 文件看起来像这样

version: 0.0
environment_variables:
    plaintext:
        "INPUT_FILE": "serverless.yml"
        "S3_BUCKET": ""
containers:
    LambdaFunctions:
        phases:
            during_build:
                commands:
                    - npm install
                    - aws cloudformation package --template $INPUT_FILE --s3-bucket $S3_BUCKET --output-template post-saml.yaml
        artifacts:
            files:
                - post-saml.yaml
                - beta.json

在此先感谢您的帮助

Answer 1

错误消息是您的日志中的几行：sh: 1: npm: not found。

这意味着 npm 命令在构建环境中不可用。您是否正确选择了nodejs构建？

创建构建环境时，必须指定操作系统和运行时。您在这里没有指定nodejs运行时的可能性很小。

请参阅此处的分步指南：https : //docs.aws.amazon.com/codebuild/latest/userguide/getting-started.html#getting-started-create-build-project

请参阅此处的文档：https : //docs.aws.amazon.com/codebuild/latest/userguide/build-env-ref-available.html

并在此处查看我的控制台的屏幕截图：