just swapped out the Beta install bits for the RTM Trial image bits and got the following error from AutoSPInstaller:
```
- Installing Prerequisite Software:
- Could not locate source for .Net Framework 3.5.1
- The PrerequisiteInstaller will attempt to download it.
- Running Prerequisite Installer (offline mode)....Done.
- Prerequisite Installer completed in 00:00:05.
WARNING: 2016-03-15 15:25:45 - Error: Unrecognized command line option
--------------------------------------------------------------
- Script halted!
Exception : System.Management.Automation.ParameterBindingValidationException: Cannot bind argument to
parameter 'Message' because it is null.
at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext
funcContext, Exception exception)
at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame
frame)
at
System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame
frame)
at
System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame
frame)
TargetObject :
CategoryInfo : InvalidData: (:) [Write-Warning], ParameterBindingValidationException
FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.WriteWarningCommand
ErrorDetails :
InvocationInfo : System.Management.Automation.InvocationInfo
ScriptStackTrace : at InstallPrerequisites, \\ctadev02\devteam\SP16\AutoSPInstaller\AutoSPInstallerFunctions.ps1:
line 875
at Run-Install, \\ctadev02\devteam\SP16\AutoSPInstaller\AutoSPInstallerMain.ps1: line 184
at <ScriptBlock>, \\ctadev02\devteam\SP16\AutoSPInstaller\AutoSPInstallerMain.ps1: line 379
at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo : {}
PSMessageDetails :
```
Any ideas? Prereq installer returning something unexpected?
Comments: ** Comment from web user: skaggej **
![Image](I've got a volume with all my AutoSPInstaller and SharePoint bits on it that I use for my farm builds. The SharePoint 2016 install failed with the message above, but the SharePoint 2013 install succeeded immediately after 2016 failed.
Comparing the folder structures, I found that the SP2013 version has an "sxs" folder in the prerequisiteinstallerfiles directory. That directory is empty, but even so, I found that the SP2016 version did not already have that folder...so I created it - add an "sxs" folder in the AutoSPInstaller/SP/2016/SharePoint/prerequisiteinstallerfiles directory.
Running the SP2016 install again, I was able to get one step further and it now acknowledges that .Net Framework 3.5.1 is installed, but it still failed with a similar message.