UE 4.10.3 prerequisites failed to install repeatedly E-1223

Development Pipeline & Plugins
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2

Hello!

I’m sorry to hear you are having trouble. It seems that you’ve covered all of the standard steps, but could you please try the follow steps in the following order:

  1. Manually download and install DirectX from here: Link
  2. Install Microsoft Visual C++ 2010 Redistributable Package (x86). On 64bit Windows also install Microsoft Visual C++ 2010 Redistributable Package (x64)
  3. Install Visual C++ Redistributable for Visual Studio 2012. On 32bit Windows install vcredist_x86.exe. On 64bit Windows install both vcredist_x86.exe and vcredist_x64.exe.
  4. Install Visual C++ Redistributable Packages for Visual Studio 2013. On 32bit Windows install vcredist_x86.exe. On 64bit Windows install both vcredist_x86.exe and vcredist_x64.exe.

Restart the launcher and attempt the download. If you are still getting the error, please reply back and we will continue to investigate for you.