我在构建自己编写的简单 WCF 服务时遇到了麻烦。这是我收到的主要错误消息：
D:\temp\3fsgwk0h.1vu\input\AndroidWCFService.csproj(102,3)：错误 MSB4019：导入的项目“C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\WCF\Microsoft.VisualStudio.ServiceModel.目标”没有找到。确认声明中的路径正确，并且该文件存在于磁盘上。
唯一可能使这个 WCF 服务更复杂的是我正在使用实体框架连接到我在 AppHarbor 上创建的 SQL 数据库。我需要进行配置设置吗？
这是回答您的问题的博客文章。从帖子：
You will see that appharbor cannot build the application with WCF service, the following error will be in log:
"Microsoft.VisualStudio.ServiceModel.targets" was not found
To fix this error you should add Microsoft.VisualStudio.ServiceModel.targets (this file located in C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\WCF folder) to your “testForBlockService” service project. Then open testForBlockService.csproj for edit and replace
<Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\WCF\Microsoft.VisualStudio.ServiceModel.targets" />
with
<Import Project="Microsoft.VisualStudio.ServiceModel.targets" />