谷歌云中与gunicorn相关的生成错误

Question

我是谷歌云的新手，我正在尝试部署用Python和Flask构建的测试web应用程序。 在云中构建应用程序时出错。我根据谷歌的教程配置了.yaml文件，我还有所有其他必需的文件（requirements.txt等）

错误：

Step #1 - "builder": gunicorn
Step #1 - "builder": 
Step #1 - "builder": INFO     starting: check python version
Step #1 - "builder": INFO     `python version` full cmd:
Step #1 - "builder": /opt/python3.7/bin/python3.7 --version
Step #1 - "builder": INFO     check python version took 0 seconds
Step #1 - "builder": INFO     uploading_requirements.txt_pkg_lyr took 0 seconds
Step #1 - "builder": INFO     build process for FTL image took 200 seconds
Step #1 - "builder": INFO     full build took 200 seconds
Step #1 - "builder": Traceback (most recent call last):
Step #1 - "builder":   File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
Step #1 - "builder":     "__main__", fname, loader, pkg_name)
Step #1 - "builder":   File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
Step #1 - "builder":     exec code in run_globals
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__.py", line 65, in <module>
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__.py", line 54, in main
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/python/builder.py", line 114, in Build
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/python/layer_builder.py", line 153, in BuildLayer
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/common/single_layer_image.py", line 60, in GetCacheKey
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/python/layer_builder.py", line 109, in GetCacheKeyRaw
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/python/layer_builder.py", line 332, in GetCacheKeyRaw
Step #1 - "builder":   File "/usr/local/bin/ftl.par/__main__/ftl/python/layer_builder.py", line 346, in _python_version
Step #1 - "builder":   File "/usr/lib/python2.7/subprocess.py", line 394, in __init__
Step #1 - "builder":     errread, errwrite)
Step #1 - "builder":   File "/usr/lib/python2.7/subprocess.py", line 938, in _execute_child
Step #1 - "builder":     self.pid = os.fork()
Step #1 - "builder": OSError: [Errno 12] Cannot allocate memory
Finished Step #1 - "builder"
ERROR
ERROR: build step 1 "gcr.io/gae-runtimes/python37_app_builder:python37_20200223_3_7_6_RC00" failed: step exited with non-zero status: 1