How to move "Derived Data Cache" folder?

Development Getting Started & Setup
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1

Hey guys,

I installed UE4 on my second HArd Disk (Sata III HDD rather than my SSD).
Even if I did that, some files are still installed on my SSD (C:\Users\xxxxxxx\AppData\Local).

I’m fine with it, but there is a folder called “Derived Data Cache” who takes more than 10Go of my SSD

How can I move this “Derived Data Cache” folder ?

Thanks !

EDIT: I saw on Hourences, that we can move this folder by editing the EngineDefault.ini (Hourences.com – Tutorials – UE4 Quick first tips)

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2

You can probably just move them, but as they are caches it should be safe to delete them and have them regenerated at the new location instead.

3

Okay thanks :slight_smile:

4

More simple way:

  1. Open BaseEngine.ini > UnrealEngineVersion\Engine\Config\BaseEngine.ini
  2. Find: [InstalledDerivedDataBackendGraph]
  3. Change: Path=“%ENGINEVERSIONAGNOSTICUSERDIR%DerivedDataCache”
  4. to: Path=“%GAMEDIR%LocalDerivedDataCache”

All cache will be saved in to directory of your project

7 Likes
5

Since 4.18 you can now set the path for the Derived Data Cache directly through Editor Preference Global Settings.
this was posted by spaceharry in this thread. I am only passing on his information.

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6

Thank you very much!!!

The setting in 4.18 helped me to solve my problem

7

Thanks for information. Every time getting a new drive for engine, I’m just looking for this method.

(Edit: Still works with 4.22)

8

best solution. still works on 4.26

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9

Thanks. This worked in 4.26.2 .
Changed it at (by clicking through)
Edit > Editor Preferences > General > Global > Local Derived Data Cache.
This worked and changed the location across all projects.
Afterwards the editor did begin recompiling all the shaders and compressing animations.

2 Likes
10

Awesome, good to know.

11

Thanks!!!

12

Thanks!

13

Thanks for the method, I only have like 120GB SSD and I just saved like 20GB space with it, working in the 4.26 btw.

14

I know that this seems pretty old, however I just did a rebuild on my machine, and put an ssd in for the system drive. I wanted to move as much off of that drive as possible, and ran across this while trying to move some files.
the global editor preferences derivedDataCache ->advanced → local section
set to->: %GAMEDIR%LocalDerivedDataCache
was the best place to move each cache to the current project path. No Files to Edit, and the best part is that it seems to propogate to all my other projects running on the same version. So I only have needed to change it once for each engine version.