TFS 2017.3 gives error when using the coverage gate

[jkwinder]

I'm getting the following error when using the coverage gate task on a TFS 2017.3 environment using the OAUTH token:

2020-09-09T15:35:24.9638272Z ##[debug]Detected token: creating bearer cred handler
2020-09-09T15:35:24.9658595Z ##[debug]Connecting to test API
2020-09-09T15:35:24.9664236Z ##[debug]Getting coverage data
2020-09-09T15:35:25.0906527Z ##[debug]Analyzing coverage data
2020-09-09T15:35:25.0911201Z ##[debug]Caught an error - logging
2020-09-09T15:35:25.0911805Z ##[debug]task result: Failed
2020-09-09T15:35:25.0914703Z ##[error]Cannot read property 'coverageStats' of undefined
2020-09-09T15:35:25.0915090Z ##[debug]Processed: ##vso[task.issue type=error;]Cannot read property 'coverageStats' of undefined
2020-09-09T15:35:25.0915749Z ##[debug]Processed: ##vso[task.complete result=Failed;]Cannot read property 'coverageStats' of undefined
2020-09-09T15:35:25.0916021Z ##[debug]Leaving Coverage Gate task
2020-09-09T15:35:25.1019417Z ##[section]Finishing: Fail if coverage delta is below 0