Hello! I have a crash durin my first open UE5.7
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Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Developer\DerivedDataCache\Private\DerivedDataBackends.cpp] [Line: 208]
Unable to use default cache graph ‘InstalledDerivedDataBackendGraph’ because there are no writable nodes available.Add -DDC-ForceMemoryCache to the command line to bypass this if you need access to the editor settings to fix the cache configuration.
I tried reinstalling and reinstalling Visual Studio, I also tried install Microsoft Visual C++ Redistributable
The error you are encountering suggests a rights/write conflict between your system:
Unable to use default cache graph ‘InstalledDerivedDataBackendGraph’ because there are no writable nodes available.
This means UE is unable to write on the DDC, which can be caused by corruption, a protected directory, and/or lack of permissions. Let’s go one by one:
First of all, please go to …\AppData\Local\UnrealEngine\Common\DerivedDataCache\ and delete the folder, which will force the engine to re-create the DDC.
Next, to rule out access or permissions, move your project to a different location, specially if it’s being store in any folder tied to a cloud service (like OneDrive).
Finally, you can implement the instruction that the error is giving, to add -DDC-ForceMemoryCache tag in the properties of your UE shortcut, which yould bypass the check that is causing the crash.