Serialization error

Creating map/set as local variable leads to serialization error.
More information in this thread:

Hello Erumaru,

I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Could you elaborate further on the exact nature of the issue?
  2. Can you reproduce this issue in a clean project?
  3. If so,could you provide a detailed list of steps to reproduce this issue in our end?
  4. Could you provide screen shots of any settings/blueprints that may be involved?

Hello Rudy,

Yes, I can reproduce it in a clean project.

Steps to reproduce:

  1. Create clean VR template project
  2. Create custom blueprint class
  3. Create function in this class
  4. Create local variable map (Integer/String)
  5. Added some elements to this map as default value
  6. Go to ProjectLauncher
  7. Start build with this settings
    Project - AnyProject,
    Build - none,
    Cook - By the book (check only WindowsNoEditor),
    Package - Do not package,
    Archive - None,
    Deploy - Do not deploy,
  8. Get this Error in the log

P.S: In my case it didn’t create any problems, but some guys in my thread had issues with this.

Hello Erumaru,

After doing some digging I was able to find that this appears to be a known issue. I have provided a link to the public tracker. Please feel free to use the link provided for future updates.

Link: Unreal Engine Issues and Bug Tracker (UE-43899)

Make it a great day