Crash opening project with vehicles

Development World Creation
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1

I get a crash when I try to load a project. The project worked fine with 4.14.
It seems something is missing related to the new vehicle plugin, but I don’t know how to add the references to it.
The project is not using a particular template, it was made as a blank blueprint project.
In the log I see a lot of rows like this (see also attached log):

[2017.03.24-15.01.49:722][  0]LogLinker: Can't find file '/Script/PhysXVehiclesEditor'
[2017.03.24-15.01.49:722][  0]LogLinker: Can't find file for asset '/Script/PhysXVehiclesEditor' while loading ../../../../../../Prog/EduStradale/Content/Blueprints/AnimBP_Vehicle.uasset.
[2017.03.24-15.01.49:722][  0]LogLinker: Can't find file '/Script/PhysXVehicles'
[2017.03.24-15.01.49:722][  0]LogLinker: Can't find file for asset '/Script/PhysXVehicles' while loading ../../../../../../Prog/EduStradale/Content/Blueprints/AnimBP_Vehicle.uasset.
[2017.03.24-15.01.49:722][  0]LogLinker: Can't find file '/Game/Objects/Vehicles/Sedan/Sedan_Skeleton'

Any hint is appreciated!

EDIT: After further researches I found out that that vehicles Blueprints are now children of PhysXVehicles.WheeledVehicle instead of the old WheeledVehicle.

131528-capture.png

But how could I change the parent of a blueprint class, to use the new one? Also, if the editor crashes on loading, it’s a little bit more difficult :slight_smile:

[Complete log][2]

2

I managed to solve by myself, maybe not in the shortest way, but now it works.
In the old version (4.14) I had a blueprint child of the WheeledVehicle class. This blueprint had a lot of stuff (functions, variables, etc), so I didn’t want to create a new blueprint from scratch in the new 4.15 version.

So, considering that my vehicle blueprint is named BP_Vehicle, I did the following:

  1. I created a new base blueprint in 4.14, called BP_BaseVehicle and descending from WheeledVehicle

  2. I made BP_Vehicle child of BP_BaseVehicle instead of WheeledVehicle

  3. In UE 4.15 I created a blueprint BP_BaseVehicle, child of the PhysXVehicles.WheeledVehicle class

  4. I duplicated my project, taking BP_BaseVehicle.uasset from 4.15, but BP_Vehicle.uasset from 4.14

  5. I did the same for the Animation blueprint and VehicleWheel

I Hope this can help someone!

Bye!