Mobile Crash - Attempt to build nav collision data

Development Platform & Builds Mobile
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1

Hi,

I was getting a crash on mobile on start up after importing two meshes.

After some researching, I found this issue could be fixed by deleting the saved folder, which did indeed work. But I thought it might be good bringing up this issue again.

Below was the error.

Kind Regards,

12-01 20:22:50.921 19667-19696/? D/UE4: Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Engine\Private\AI\Navigation\NavCollision.cpp] [Line: 440]
12-01 20:22:50.921 19667-19696/? D/UE4: Attempt to build nav collision data for /Game/SideScrollerBP/Meshes/S_BasicCube.S_BasicCube:NavCollision_0 when we are unable to. This platform requires cooked packages.
12-01 20:22:50.921 19667-19696/? D/UE4: [2015.12.01-20.22.50:930][ 0]Assertion failed: Assertion failed: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Engine\Private\AI\Navigation\NavCollision.cpp] [Line: 440]
12-01 20:22:50.921 19667-19696/? D/UE4: Attempt to build nav collision data for /Game/SideScrollerBP/Meshes/S_BasicCube.S_BasicCube:NavCollision_0 when we are unable to. This platform requires cooked packages.

2

Piranhi,

Could you please provide me with the full verbose from your mobile device? Please include the iOS version and the type of the device in case those aren’t captured in the you provide.

If you’re trying to get the Android , please go to the following filepath and use Monitor.bat: C:\NVPACK_TADP\android-sdk-windows\tools

If you’re trying to get iOS , please go [here][1].

Thank you!

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3

Hey,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!

4

Hiya - I’ve been having a similar issue when launching on android.

Deleting the ‘Saved’ folder from my project seems to have sorted it though - its not crashing anymore, at least.

Heres the section of an ‘adb logcat’ that seems to refer to my app : [link text][1]

This looks like the prime suspect, but i’m just guessing really :

D/UE4 ( 7468): Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Engine\Private\AI\Navigation\NavCollision.cpp] [Line: 440]

Anyway, cheers to OP for the info.

71453-pertinent_log.txt (28.6 KB)

5

Revilossor,

Does the same error occur when you’re in 4.10.1? Are you experiencing this crash anytime you use navigation collision in even a newly created project?

Please keep in mind that it’s the holiday season and there may be a delay in response, thank you!