- Could not locate source for .Net Framework 3.5.1

[adilahmedSP]

Hi,
I am installing SharePoint 2019 on Windows Server 2019 and downloaded latest version of AUTOSPINSTALLER when i run batch file it was stopped at below stage

• 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)....
• Error: This command cannot be run due to the error: The system cannot find the file specified.

---

• Script halted!
• An unknown error occurred installing prerequisites
  Press any key to exit...

[brianlala]

Did you populate the source?

\SP\2019\SharePoint\prerequisiteinstallerfiles\sxs