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ERROR: for nginx-1.17-alpine  a bytes-like object is required, not 'str'

ERROR: for nginx  a bytes-like object is required, not 'str'
Traceback (most recent call last):
  File "site-packages/docker/api/client.py", line 261, in _raise_for_status
  File "site-packages/requests/models.py", line 940, in raise_for_status
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: http+docker://localhost/v1.22/containers/4e5bbce451720d688957fce5e67d30379648b7652ee261fb635bdaa3bf11be47/start

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "compose/service.py", line 625, in start_container
  File "compose/container.py", line 241, in start
  File "site-packages/docker/utils/decorators.py", line 19, in wrapped
  File "site-packages/docker/api/container.py", line 1095, in start
  File "site-packages/docker/api/client.py", line 263, in _raise_for_status
  File "site-packages/docker/errors.py", line 31, in create_api_error_from_http_exception
docker.errors.APIError: 500 Server Error: Internal Server Error ("b'driver failed programming external connectivity on endpoint nginx-1.17-alpine (b5036045fcde103ededebe92e42cd080024d2981738925f0981656189a54b15c): Bind for 0.0.0.0:8080 failed: port is already allocated'")

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "bin/docker-compose", line 6, in <module>
  File "compose/cli/main.py", line 72, in main
  File "compose/cli/main.py", line 128, in perform_command
  File "compose/cli/main.py", line 1107, in up
  File "compose/cli/main.py", line 1103, in up
  File "compose/project.py", line 570, in up
  File "compose/parallel.py", line 112, in parallel_execute
  File "compose/parallel.py", line 210, in producer
  File "compose/project.py", line 556, in do
  File "compose/service.py", line 568, in execute_convergence_plan
  File "compose/service.py", line 510, in _execute_convergence_start
  File "compose/parallel.py", line 112, in parallel_execute
  File "compose/parallel.py", line 210, in producer
  File "compose/service.py", line 508, in <lambda>
  File "compose/service.py", line 620, in start_container_if_stopped
  File "compose/service.py", line 627, in start_container
TypeError: a bytes-like object is required, not 'str'
[2136] Failed to execute script docker-compose

docker-compose up -d

PM:WIN10
VM:CENTOS 7.7
CM:APLINE 3.xx
note:win+virtual+sharedir

#find factor for:Bind for 0.0.0.0:8080 failed: port is already allocated'
ps -aux | grep -v grep | grep docker-proxy
#> 172.20.1.2 -container-port 8080

#reason: nginx uses 8080:80 and tomcat uses 8080:8080

#update docker-compose.yml ports for nginx and tomcat serve