尝试使用azure kudu部署项目（从bitbucket repo读取）我在azure门户的部署中心中遇到以下错误。。。
此错误发生在所有最新版本的microsoft.net.compilers nuget包中。唯一有效的版本是5个月前的3.0.0。
有人知道是什么原因吗？azure kudu尚未更新吗？

Command: "D:\home\site\deployments\tools\deploy.cmd"
Handling .NET Web Application deployment.
MSBuild auto-detection: using msbuild version '14.0.23107.0 built by: D14REL' from 'D:\Program Files (x86)\MSBuild\14.0\Bin'.
Restoring NuGet package Microsoft.Net.Compilers.3.1.1.
  GET https://api.nuget.org/v3-flatcontainer/microsoft.net.compilers/3.1.1/microsoft.net.compilers.3.1.1.nupkg
  OK https://api.nuget.org/v3-flatcontainer/microsoft.net.compilers/3.1.1/microsoft.net.compilers.3.1.1.nupkg 937ms
Installing Microsoft.Net.Compilers 3.1.1.
Adding package 'Microsoft.Net.Compilers.3.1.1' to folder 'D:\home\site\repository\packages'
Added package 'Microsoft.Net.Compilers.3.1.1' to folder 'D:\home\site\repository\packages'

NuGet Config files used:
    D:\local\UserProfile\AppData\Roaming\NuGet\NuGet.Config

Feeds used:
    D:\home\.nuget\
    https://api.nuget.org/v3/index.json

Installed:
    1 package(s) to packages.config projects
D:\home\site\repository\packages\Microsoft.Net.Compilers.3.1.1\tools\Microsoft.Managed.Core.targets(63,60): error MSB4086: A numeric comparison was attempted on "$(MSBuildVersion)" that evaluates to "" instead of a number, in condition "$(MSBuildVersion) >= 16.1.0". [D:\home\site\repository\MyCompany\MyCompany.csproj]
Failed exitCode=1, command="D:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe" "D:\home\site\repository\MyCompany\MyCompany.csproj" /nologo /verbosity:m /t:Build /t:pipelinePreDeployCopyAllFilesToOneFolder /p:_PackageTempDir="D:\local\Temp\8d727f56aa60788";AutoParameterizationWebConfigConnectionStrings=false;Configuration=Release;UseSharedCompilation=false /p:SolutionDir="D:\home\site\repository\.\\"
An error has occurred during web site deployment.
\r\nD:\Program Files (x86)\SiteExtensions\Kudu\84.10807.4030\bin\Scripts\starter.cmd "D:\home\site\deployments\tools\deploy.cmd"

编辑###

我还打开了一个问题@kudu github repo。