在 AppVeyor 上运行 Coverlet 并显示消息“vstest.console process failed to connect to testhost process”

Question

当我尝试运行床单上AppVeyor使用以下命令：

dotnet test GeneticSharp.Domain.UnitTests -f netcoreapp2.0 /p:CollectCoverage=true /p:CoverletOutputFormat=opencover

我收到以下消息：

vstest.console process failed to connect to testhost process after 90 seconds. This may occur due to machine slowness, please set environment variable VSTEST_CONNECTION_TIMEOUT to increase timeout.

Incrementing VSTEST_CONNECTION_TIMEOUT did not solve.

The command runs with no problem on my local Windows and Mac machines.