嗨David Coxsey，

Hi David Coxsey,

感谢您在此发布。

您在VSTS中使用的构建任务是什么？ MSBuild或Visual Studio Build？

What is build task you are using in the VSTS? MSBuild or Visual Studio Build?

在项目文件中，导入代码为：

In the project file, the import code is:

<Import Project="

（MSBuildExtensionsPath）\Reporting Services \ Microsros.ReportingServices.MSBuilder.targets" />

(MSBuildExtensionsPath)\Reporting Services\Microsoft.ReportingServices.MSBuilder.targets" />

MSBuildExtensionsPath的值取决于MSBuild版本，如果您使用的是Visual Studio 2017 / MSBuild 15.0，则此变量的值应为：

The value of MSBuildExtensionsPath is depends on the MSBuild version, if you are using Visual Studio 2017/MSBuild 15.0, the value of this variable should be:

C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Reporting Services

如果您使用的是Visual Studio 2015 / MSuild 14.0及更低版本，则值应为：

If you are using Visual Studio 2015/MSuild 14.0 and below, the value should be:

C:\Program Files (x86)\MSBuild

根据错误信息，值为C：\Program Files（x86）\ MSBuild，确保您没有在VSTS上使用VS2017 / MSBuild 15.0，并且你可以在那个文件夹上找到这个文件。

According to the error info, the value is C:\Program Files (x86)\MSBuild, make sure you are not using VS2017/MSBuild 15.0 on VSTS, and you can find this file on that folder.

如果上面没有帮助你，请你在这里分享你关于构建任务的配置吗？ 

If above not help you, could you please share your configuration about Build task here? 

希望这会有所帮助。