This code works fine on my local machine, but when I run it on the build server, I get the exception below

gistfile1.cs

static void CreateTemplateDatabase(SqlConnectionStringBuilder csb)
{
    var migration = new Migrate().Set(c =>
        {
            c.ConnectionString = csb.ConnectionString;
            c.SqlFilesDirectory = string.Format(@"{0}\Database", TempDir);
            c.RestoreFromPath = string.Format(@"{0}\Database\MyProject.bak", TempDir);
            c.Silent = true;
            c.Restore = true;
            c.SchemaName = "Iddeal";
            c.DoNotCreateDatabase = false;
            c.RestoreCustomOptions =
                string.Format(@"MOVE 'MyProject' TO '{0}\{1}.mdf', MOVE 'MyProject_log' TO '{0}\{1}_log.ldf'",
                              TempDir, csb.InitialCatalog);
            c.Debug = true;
            c.Logger = new ConsoleLogger(true);
        });
    migration.RunRestore();
}

gistfile2.txt

[22:38:55]Step 2/2: Run Features (MSBuild) (17s)
[22:38:55][Step 2/2] Starting: C:\BuildAgent\plugins\dotnetPlugin\bin\JetBrains.BuildServer.MsBuildBootstrap.exe /workdir:C:\BuildAgent\work\10440b3c817fefc4 /msbuildPath:C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
[22:38:55][Step 2/2] in directory: C:\BuildAgent\work\10440b3c817fefc4
[22:38:59][Step 2/2] Build\MyProject.build.teamcity: Build target: RunFeatures (12s)
[22:38:59][Build\MyProject.build.teamcity] RunFeatures (12s)
[22:38:59][RunFeatures] Copy
[22:38:59][Copy] Copying file from "ForceNet40Runtime.config" to "..\packages\SpecFlow.1.9.0\tools\specflow.exe.config".
[22:38:59][RunFeatures] Exec
[22:38:59][Exec] "C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\bin\NETFX 4.0 Tools\CorFlags.exe" ..\packages\SpecFlow.1.9.0\tools\specflow.exe /32BIT+
[22:38:59][Exec] Microsoft (R) .NET Framework CorFlags Conversion Tool.  Version  4.0.30319.1
[22:38:59][Exec] Copyright (c) Microsoft Corporation.  All rights reserved.
[22:38:59][Exec] 
[22:38:59][RunFeatures] Executing Features
[22:38:59][RunFeatures] Exec (10s)
[22:38:59][Exec] ..\packages\NUnit.Runners.2.6.2\tools\nunit-console-x86.exe /labels /framework=net-4.0 ..\MyProject.Specs\bin\x86\Release\MyProject.Specs.dll
[22:38:59][Exec] NUnit-Console version 2.6.2.12296
[22:38:59][Exec] Copyright (C) 2002-2012 Charlie Poole.
[22:38:59][Exec] Copyright (C) 2002-2004 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov.
[22:38:59][Exec] Copyright (C) 2000-2002 Philip Craig.
[22:38:59][Exec] All Rights Reserved.
[22:38:59][Exec] 
[22:38:59][Exec] Runtime Environment - 
[22:38:59][Exec]    OS Version: Microsoft Windows NT 6.1.7601 Service Pack 1
[22:38:59][Exec]   CLR Version: 2.0.50727.5466 ( Net 3.5 )
[22:38:59][Exec] 
[22:38:59][Exec] ProcessModel: Default    DomainUsage: Single
[22:38:59][Exec] Execution Runtime: net-4.0
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.CommittingMassChangesToASelectionOfExamsIncludingIST
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.CommittingMassChangesToHistoricalExams
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToApprovedISTExams
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToApprovedISTISIAndHistoricalExams
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToHistoricalExams
[22:39:09][Exec] ***** MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToISIExams
[22:39:09][Exec] 
[22:39:09][Exec] Tests run: 6, Errors: 0, Failures: 6, Inconclusive: 0, Time: 7.8667481 seconds
[22:39:09][Exec]   Not run: 0, Invalid: 0, Ignored: 0, Skipped: 0
[22:39:09][Exec] 
[22:39:09][Exec] Errors and Failures:
[22:39:09][Exec] EXEC MyProject.Specs.EditExamHistoryFeature
[22:39:09][Exec] The previous error was converted to a warning because the task was called with ContinueOnError=true.
[22:39:09][Exec]    SetUp : StructureMap.StructureMapException : StructureMap Exception Code:  207
[22:39:09][Exec] Internal exception while creating Instance '10ed0691-496b-422a-b7e3-0ac0e5a38a6c' of PluginType roundhouse.databases.Database, roundhouse, Version=0.8.5.0, Culture=neutral, PublicKeyToken=91b86fd44f1f23bc.  Check the inner exception for more details.
[22:39:09][Exec]   ----> System.NullReferenceException : A type could not be created from the object you passed. "roundhouse.databases.sqlserver.SqlServerDatabase, roundhouse.databases.sqlserver" resolves to null.
[22:39:09][Exec]    at StructureMap.Pipeline.ConstructorInstance`1.build(Type pluginType, BuildSession session)
[22:39:09][Exec]    at StructureMap.Pipeline.Instance.createRawObject(Type pluginType, BuildSession session)
[22:39:09][Exec]    at StructureMap.Pipeline.Instance.Build(Type pluginType, BuildSession session)
[22:39:09][Exec]    at StructureMap.Pipeline.ObjectBuilder.Resolve(Type pluginType, Instance instance, BuildSession session)
[22:39:09][Exec]    at StructureMap.BuildSession.CreateInstance(Type pluginType, Instance instance)
[22:39:09][Exec]    at StructureMap.BuildSession.<>c__DisplayClass3.<.ctor>b__1()
[22:39:09][Exec]    at StructureMap.BuildSession.CreateInstance(Type pluginType)
[22:39:09][Exec]    at StructureMap.Container.GetInstance[T]()
[22:39:09][Exec]    at StructureMap.ObjectFactory.GetInstance[PLUGINTYPE]()
[22:39:09][Exec]    at roundhouse.infrastructure.app.ApplicationConfiguraton.build_items_for_container(ConfigurationPropertyHolder configuration_property_holder)
[22:39:09][Exec]    at roundhouse.infrastructure.app.ApplicationConfiguraton.build_the_container(ConfigurationPropertyHolder configuration_property_holder)
[22:39:09][Exec]    at roundhouse.Migrate.Run()
[22:39:09][Exec]    at roundhouse.Migrate.RunRestore()
[22:39:09][Exec]    at MyProject.Specs.TestEnvironment.CreateTemplateDatabase(SqlConnectionStringBuilder csb) in c:\BuildAgent\work\aff680d58180ae3c\MyProject.Specs\TestEnvironment.cs:line 208
[22:39:09][Exec]    at MyProject.Specs.TestEnvironment.BeforeTestRun() in c:\BuildAgent\work\aff680d58180ae3c\MyProject.Specs\TestEnvironment.cs:line 53
[22:39:09][Exec]    at lambda_method(Closure , IContextManager )
[22:39:09][Exec]    at TechTalk.SpecFlow.Bindings.BindingInvoker.InvokeBinding(IBinding binding, IContextManager contextManager, Object[] arguments, ITestTracer testTracer, TimeSpan& duration)
[22:39:09][Exec]    at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.FireEvents(HookType bindingEvent)
[22:39:09][Exec]    at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnTestRunnerStart()
[22:39:09][Exec]    at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.Initialize(Assembly[] bindingAssemblies)
[22:39:09][Exec]    at TechTalk.SpecFlow.TestRunner.InitializeTestRunner(Assembly[] bindingAssemblies)
[22:39:09][Exec]    at TechTalk.SpecFlow.Infrastructure.TestRunnerFactory.Create(Assembly testAssembly)
[22:39:09][Exec]    at TechTalk.SpecFlow.TestRunnerManager.CreateTestRunner(TestRunnerKey key)
[22:39:09][Exec]    at TechTalk.SpecFlow.TestRunnerManager.GetTestRunner(TestRunnerKey key)
[22:39:09][Exec]    at TechTalk.SpecFlow.TestRunnerManager.GetTestRunner(Assembly testAssembly, Boolean async)
[22:39:09][Exec]    at TechTalk.SpecFlow.TestRunnerManager.GetTestRunner()
[22:39:09][Exec]    at MyProject.Specs.EditExamHistoryFeature.FeatureSetup() in c:\BuildAgent\work\aff680d58180ae3c\MyProject.Specs\EditExamHistory.feature.cs:line 0
[22:39:09][Exec] --NullReferenceException
[22:39:09][Exec]    at roundhouse.infrastructure.loaders.DefaultInstanceCreator.create_object_from_string_type(String object_to_create)
[22:39:09][Exec]    at roundhouse.infrastructure.loaders.DefaultInstanceCreator.create_object_from_string_type[T](String object_to_create)
[22:39:09][Exec]    at roundhouse.infrastructure.app.builders.DatabaseBuilder.build(FileSystemAccess file_system, ConfigurationPropertyHolder configuration_property_holder)
[22:39:09][Exec]    at roundhouse.infrastructure.app.ApplicationConfiguraton.<>c__DisplayClass5.<build_items_for_container>b__1(IContext context)
[22:39:09][Exec]    at StructureMap.Pipeline.ConstructorInstance`1.build(Type pluginType, BuildSession session)
[22:39:09][Exec] 
[22:39:09][Exec] 2) Parent Failure : MyProject.Specs.EditExamHistoryFeature.CommittingMassChangesToASelectionOfExamsIncludingIST
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 3) Parent Failure : MyProject.Specs.EditExamHistoryFeature.CommittingMassChangesToHistoricalExams
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 4) Parent Failure : MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToApprovedISTExams
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 5) Parent Failure : MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToApprovedISTISIAndHistoricalExams
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 6) Parent Failure : MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToHistoricalExams
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 7) Parent Failure : MyProject.Specs.EditExamHistoryFeature.MakingMassChangesToISIExams
[22:39:09][Exec]    TestFixtureSetUp failed in EditExamHistoryFeature
[22:39:09][Exec] 
[22:39:09][Exec] C:\BuildAgent\work\10440b3c817fefc4\Build\MyProject.build(408, 3): warning MSB3073: The command "..\packages\NUnit.Runners.2.6.2\tools\nunit-console-x86.exe /labels /framework=net-4.0 ..\MyProject.Specs\bin\x86\Release\MyProject.Specs.dll" exited with code 6.
[22:39:09][Exec] The previous error was converted to a warning because the task was called with ContinueOnError=true.
[22:39:09][Exec] Build continuing because "ContinueOnError" on the task "Exec" is set to "true".