[英]Defining a correct requirements.txt file
我开发了一个Flask Web应用程序,该应用程序可在本地计算机上运行,但现在正尝试(通过IBM Bluemix)移植到Web上。 我第一次尝试失败。 我收到的错误消息是:
Server error, status code: 400, error code: 170001, message: Staging error: no available stagers
当我用cf logs myapp --recent
检查日志文件时,我发现:
2015-11-08T15:34:15.92-0500 [STG/35] OUT -----> Downloaded app package (72K)
2015-11-08T15:34:19.98-0500 [STG/35] OUT -----> Downloaded app buildpack cache (39M)
2015-11-08T15:34:24.82-0500 [STG/0] OUT -------> Buildpack version 1.3.1
2015-11-08T15:34:40.57-0500 [STG/0] OUT -----> Installing dependencies with pip
2015-11-08T15:34:41.54-0500 [STG/0] OUT You are using pip version 6.1.0.dev0, however version 7.1.2 is available.
2015-11-08T15:34:41.54-0500 [STG/0] OUT You should consider upgrading via the 'pip install --upgrade pip' command.
2015-11-08T15:34:41.56-0500 [STG/0] OUT Collecting flask.ext.wtf (from -r requirements.txt (line 2))
2015-11-08T15:34:41.88-0500 [STG/0] OUT Could not find a version that satisfies the requirement flask.ext.wtf (from -r requirements.txt (line 2)) (from versions: )
2015-11-08T15:34:41.88-0500 [STG/0] OUT No matching distribution found for flask.ext.wtf (from -r requirements.txt (line 2))
2015-11-08T15:34:41.96-0500 [STG/0] OUT Staging failed: Buildpack compilation step failed
2015-11-08T15:34:41.97-0500 [STG/0] ERR
2015-11-08T15:34:42.67-0500 [API/2] ERR encountered error: App staging failed in the buildpack compile phase
2015-11-08T15:35:37.75-0500 [API/3] OUT Updated app with guid b580bb64-4415-4bb4-8fd1-1e4d3de4f7d9 ({"name"=>"cultural-insight", "memory"=>128, "environment_json"=>"PRIVATE DATA HIDDEN"})
2015-11-08T15:35:49.95-0500 [API/3] OUT Updated app with guid b580bb64-4415-4bb4-8fd1-1e4d3de4f7d9 ({"state"=>"STOPPED"})
2015-11-08T15:35:52.41-0500 [DEA/113] OUT Got staging request for app with id b580bb64-4415-4bb4-8fd1-1e4d3de4f7d9
2015-11-08T15:35:52.47-0500 [API/0] ERR exception handling first response Staging error: failed to stage application:
2015-11-08T15:35:52.47-0500 [API/0] ERR Not enough memory resources available
2015-11-08T15:50:52.42-0500 [API/0] ERR encountered error: Staging error: failed to stage application: staging had already been marked as failed, this could mean that staging took too long
问题似乎是pip
找不到Flask-WTF
,我需要我的应用程序才能正常工作。
我在本地计算机上通过pip install Flask-WTF
。 构建器在设置时会提取的requirements.txt
内容很简单:
Flask==0.10.1 Flask-WTF
特别是,我不确定为什么pip要求flask.ext.wtf
吗? 此外,令我困扰的是该应用程序说将其限制为128 MB,而当我将其扩展到512 MB时。
总之,我不确定发生了什么。 我该如何解决这个问题? 完整的源代码在这里 。
运行以下命令(已编辑):
pip install --upgrade pip
并更新您的requirements.txt文件:
pip freeze > requirements.txt
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