我正在尝试在AWS上部署我的应用程序，但此时似乎停滞了：
Uploading: [##################################################] 100% Done...
2019-10-22 11:01:57 INFO Environment update is starting.
2019-10-22 11:02:00 INFO Deploying new version to instance(s).
2019-10-22 11:02:09 ERROR Your requirements.txt is invalid. Snapshot your logs for details.
2019-10-22 11:02:10 ERROR [Instance: i-#######] Command failed on instance. Return code: 1 Output: (TRUNCATED)...)
File "/usr/lib64/python2.7/subprocess.py", line 190, in check_call
raise CalledProcessError(retcode, cmd)
CalledProcessError: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1.
Hook /opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py failed. For more detail, check /var/log/eb-activity.log using console or EB CLI.
2019-10-22 11:02:10 INFO Command execution completed on all instances. Summary: [Successful: 0, Failed: 1].
2019-10-22 11:02:10 ERROR Unsuccessful command execution on instance id(s) 'i########'. Aborting the operation.
2019-10-22 11:02:11 ERROR Failed to deploy application.
ERROR: ServiceError - Failed to deploy application.
它说我的requirements.txt无效，为什么？
Requirement.txt
Django
django-crispy-forms==1.7.0
pytz==2017.3
gunicorn==19.9.0
django-widget-tweaks
psycopg2
请帮助我弄清楚我在做什么错。