TFS 2017 测试任务版本 2 无法获得功能标志警告

Question

在构建机器完成（TFS2017）构建后，最近开始从我的 VsTest 任务版本 2（版本 1 不产生警告）中收到以下警告：

Unable to get feature flag: TestExecution.EnableTranslationApi
Unable to get feature flag: TestExecution.EnableDiagnostics

我创建了一个简单的构建定义，它有一个 VsTest 任务，但甚至没有任何测试，我遇到了同样的问题。这是它的日志：

2019-05-15T17:42:14.4932509Z ##[section]Starting: VsTest - testAssemblies
2019-05-15T17:42:14.4943225Z ==============================================================================
2019-05-15T17:42:14.4943357Z Task         : Visual Studio Test
2019-05-15T17:42:14.4943570Z Description  : Run unit and functional tests (Selenium, Appium, Coded UI test, etc.) using the Visual Studio Test (VsTest) runner. Test frameworks that have a Visual Studio test adapter such as MsTest, xUnit, NUnit, Chutzpah (for JavaScript tests using QUnit, Mocha and Jasmine), etc. can be run. Tests can be distributed on multiple agents using this task (version 2).
2019-05-15T17:42:14.4943768Z Version      : 2.145.0
2019-05-15T17:42:14.4943871Z Author       : Microsoft Corporation
2019-05-15T17:42:14.4943976Z Help         : [More information](https://go.microsoft.com/fwlink/?LinkId=835764)
2019-05-15T17:42:14.4944089Z ==============================================================================
2019-05-15T17:42:21.2906431Z SystemVssConnection exists true
2019-05-15T17:42:21.3711041Z ##[warning]Unable to get feature flag: TestExecution.EnableTranslationApi
2019-05-15T17:42:21.5124738Z SystemVssConnection exists true
2019-05-15T17:42:21.5301824Z ##[warning]Unable to get feature flag: TestExecution.EnableDiagnostics
2019-05-15T17:42:21.6498462Z Running tests using vstest.console.exe runner.
2019-05-15T17:42:21.6608055Z ======================================================
2019-05-15T17:42:21.6783692Z Test selector : Test assemblies
2019-05-15T17:42:21.6811412Z Test filter criteria : null
2019-05-15T17:42:21.7076165Z Search folder : D:\Agent02\_work\5\s
2019-05-15T17:42:21.8323849Z VisualStudio version selected for test execution : latest
2019-05-15T17:42:25.9981965Z Run in parallel : false
2019-05-15T17:42:25.9982368Z Run in isolation : false
2019-05-15T17:42:25.9982730Z Path to custom adapters : null
2019-05-15T17:42:25.9983384Z Other console options : null
2019-05-15T17:42:25.9983727Z Code coverage enabled : false
2019-05-15T17:42:25.9983845Z Diagnostics enabled : false
2019-05-15T17:42:25.9984208Z SystemVssConnection exists true
2019-05-15T17:42:25.9985363Z Run the tests locally using vstest.console.exe
2019-05-15T17:42:25.9985487Z ========================================================
2019-05-15T17:42:25.9985644Z Test selector : Test assemblies
2019-05-15T17:42:25.9985820Z Test assemblies : **\release\*test*.dll,!**\obj\**
2019-05-15T17:42:25.9985973Z Test filter criteria : null
2019-05-15T17:42:25.9986123Z Search folder : D:\Agent02\_work\5\s
2019-05-15T17:42:25.9986291Z Run settings file : D:\Agent02\_work\5\s
2019-05-15T17:42:25.9986492Z Run in parallel : false
2019-05-15T17:42:25.9986654Z Run in isolation : false
2019-05-15T17:42:25.9988401Z Path to custom adapters : null
2019-05-15T17:42:25.9988814Z Other console options : null
2019-05-15T17:42:25.9989201Z Code coverage enabled : false
2019-05-15T17:42:25.9989420Z Diagnostics enabled : false
2019-05-15T17:42:25.9990350Z Rerun failed tests: false
2019-05-15T17:42:25.9990938Z VisualStudio version selected for test execution : latest
2019-05-15T17:42:26.0399542Z ========================================================
2019-05-15T17:42:32.5917477Z ##[warning]No test assemblies found matching the pattern: **\release\*test*.dll,!**\obj\**.
2019-05-15T17:42:32.5917841Z ======================================================
2019-05-15T17:42:32.7510424Z ##[section]Finishing: VsTest - testAssemblies

这个警告想告诉我什么，我该如何解决？