When I am installing the Alloy project I get an error message I cannot understand. Could someone please tell me what to do to resolve this?

Error - The modules finder couldn't find a directory at '/epi/UI/0b3e1bc596834d18a46ecc949093ecd0/'
Parameter name: moduleResourcePath

An error has occured and the transaction will be rolled back
Error dropping database user 'dbUserMyEPiServerSite5Test53'. Please drop manually.
A transport-level error has occurred when sending the request to the server. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)
Failed to rollback creation of directory C:\EPiServer\Sites\MyEPiServerSite5Test53
The process cannot access the file 'C:\EPiServer\Sites\MyEPiServerSite5Test53' because it is being used by another process.
Rolledback

An unhandled error has occured:
The modules finder couldn't find a directory at '/epi/UI/0b3e1bc596834d18a46ecc
949093ecd0/'
Parameter name: moduleResourcePath
When executing

At C:\Program Files (x86)\EPiServer\CMS\7.0.586.1\Install\Modules\Alloy\Install
Alloy.ps1:108 char:20
+ Add-EPiServerData <<<< $importSource $selectedWebApplication.PhysicalPath
$selectedWebApplication.ApplicationName -updateStartPageAttribute

True
=
Get-EPiIsBulkInstalling

An unhandled error has occured:
The modules finder couldn't find a directory at '/epi/UI/0b3e1bc596834d18a46ecc
949093ecd0/'
Parameter name: moduleResourcePath
When executing

At C:\Program Files (x86)\EPiServer\CMS\7.0.586.1\Install\Modules\Alloy\Install
Alloy.ps1:108 char:20
+ Add-EPiServerData <<<< $importSource $selectedWebApplication.PhysicalPath
$selectedWebApplication.ApplicationName -updateStartPageAttribute

=
Get-EPiIsBulkInstalling

At C:\Program Files (x86)\EPiServer\CMS\7.0.586.1\Install\Modules\Alloy\Install Alloy.ps1:108 char:20
+ Add-EPiServerData <<<< $importSource $selectedWebApplication.PhysicalPath $selectedWebApplication.ApplicationName -updateStartPageAttribute
System.ArgumentException: The modules finder couldn't find a directory at '/epi/UI/0b3e1bc596834d18a46ecc949093ecd0/'
Parameter name: moduleResourcePath
at EPiServer.Shell.Modules.ModuleFinder.GetModuleInDirectory(String routeBasePath, String moduleResourcePath, IEnumerable`1 configuredAssemblyNames, AutoDiscoveryLevel discoveryMode, String configuredName)
at EPiServer.Shell.Modules.ModuleFinder.GetModulesInSubdirectories(String rootPath, AutoDiscoveryLevel discoveryMode)
at EPiServer.Packaging.Utility.PackagingModuleProvider.GetModules()
at EPiServer.Shell.ShellInitialization.<GetConfiguredModules>b__1b(IModuleProvider p)
at System.Linq.Enumerable.<SelectManyIterator>d__14`2.MoveNext()
at System.Linq.Enumerable.<DistinctIterator>d__81`1.MoveNext()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at EPiServer.Shell.ShellInitialization.Initialize(InitializationEngine context)
at EPiServer.Framework.Initialization.ModuleNode.<>c__DisplayClass5.<Initialize>b__4()
at EPiServer.Framework.Initialization.ModuleNode.Execute(Action a, String key)
at EPiServer.Framework.Initialization.ModuleNode.Initialize(InitializationEngine context)
at EPiServer.Framework.Initialization.InitializationEngine.InitializeModules()
at EPiServer.Framework.Initialization.InitializationEngine.Initialize(HostType hostType)
at EPiServer.Framework.Initialization.InitializationModule.Initialize(HostType hostType)
at EPiServer.Framework.Initialization.InitializationModule.FrameworkInitialization(HostType hostType)
at EPiServer.Install.CMS.Common.EPiServerCMSWrapper.InitalizeEPiServer(String webConfigPath)
at EPiServer.Install.CMS.Common.EPiServerCMSWrapper.Initialize(String destinationPath, String virtualDirectory)
at EPiServer.Install.CMS.Common.EPiServerCMSWrapper.Initialize(String destinationPath, String virtualDirectory)
at EPiServer.Install.Common.AppDomains.RunInAppDomainInstaller.Install(IDictionary stateSaver)
at EPiServer.Install.InstallationManager.Install(Installer installer)
at EPiServer.Install.CMS.Modules.ModulesInstallationManager.ImportData(InstallationManager installationManager, String destinationDirectory, String virtualDirectory, String importSource, DatabaseDestination destination, Boolean updateStartPageAttribute, TimeSpan transactionTimeout)
at EPiServer.Install.CMS.Modules.CmdLets.AddEPiServerData.ProcessRecord()
at System.Management.Automation.Cmdlet.DoProcessRecord()
at System.Management.Automation.CommandProcessor.ProcessRecord()