taskcat execution fails with "Error while fetching server API version"

[kkvinjam]

Describe the bug
All taskcat commands appears to fail with following error:

Mac:
taskcat version : 0.9.42
docker version: 26.1.4
Error: DockerException Error while fetching server API version: Not supported URL scheme http+docker

Linux:
taskcat version : 0.9.42
docker version: 25.0.3
Error: [ERROR ] : DockerException Invalid response from docker daemon: key "ApiVersion" is missing.

To Reproduce
Steps to reproduce the behavior:

1. Are you testing a QuickStart or Custom template? Custom template
2. Attach or link a copy of the template if possible (remove any sensitive info) N/A
3. Provide the parameters that you passed. (remove any sensitive info) N/A
4. How did you install taskcat? (docker or pip3) pip3
5. Are you using a profile, an instance role or access keys to run taskcat? access keys and profile (issue seen with both)
6. Is your AWS environment configured via aws configure? yes

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

**Version (Please make sure you are running the latest version of taskcat)

• Taskcat Version (ex: [2018.817.210357])

Note: Python Version (python3 required)

To find versions:
Via taskcat: taskcat -V
Via pip3: pip3 show taskcat

Note: both version should match

To update taskcat run:
for docker : docker pull taskcat/taskcat
for pip3: pip3 install --upgrade taskcat

Additional context
Add any other context about the problem here.

[andrew-glenn]

Resolved in 0.9.53