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我有两个Visual Studio数据库项目。在我的本地开发环境中都能很好地开发。 在TFS构建服务器，具有TFS构建包含两个projcets解决方案，建立一个精细和其他失败，此错误：在TFS构建服务器上构建VS数据库项目的问题
Task "SqlBuildTask"
Creating a model to represent the project...
C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(58,5): error MSB4018: The "SqlBuildTask" task failed unexpectedly.
C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(58,5): error MSB4018: System.NullReferenceException: Object reference not set to an instance of an object.
C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(58,5): error MSB4018: at Microsoft.Data.Schema.Tasks.TaskHostLoader.Load(ITaskHost providedHost, TaskLoggingHelper providedLogger)
C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(58,5): error MSB4018: at Microsoft.Data.Schema.Tasks.DBBuildTask.Execute()
C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(58,5): error MSB4018: at Microsoft.Build.BuildEngine.TaskEngine.ExecuteInstantiatedTask(EngineProxy engineProxy, ItemBucket bucket, TaskExecutionMode howToExecuteTask, ITask task, Boolean& taskResult)
我注意到在构建日志下面的差异，我认为这是有关，但我不知道是什么原因造成的。
良好的项目：
Overriding target "Build" in project "C:\Windows\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets" with target "Build" from project "C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.VisualStudio.TeamSystem.Data.Tasks.targets".
失败项目：
Overriding target "Build" in project "C:\Windows\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets" with target "Build" from project "C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.Common.targets".
两个数据库项目包括下面的导入（只）：
<Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets" />
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