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Fixed in 2020.1

Fixed in 2019.3

Votes

10

Found in

2019.3.0a10

Issue ID

1175557

Regression

Yes

Crash in NavMeshManager on Mobile with IL2CPP when using NavMeshComponents

AI

-

To reproduce:
1. Open the attached project;
2. Switch platfom to iOS or Android;
3. Make sure Scripting Backend is set to IL2CPP;
4. Re-bake the NavMesh (Island scene hierarchy > Island Level > Logic > NavMesh > NavMeshSurface component > Bake);
5. Build and run Island scene on mobile devices.

Result: the scene crashes on load

Reproduced with: 2019.3.0a10, 2019.3.0a11, 2019.3.0a12

Notes: still crashes after re-baking NavMesh data

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Until a final fix is provided there are two workarounds that might help in this situation:
1. Disable "Engine Code Stripping" from the player settings of the Android/iOS build.
2. Bake and save at least one (small) static NavMesh somewhere in the scene. This will prevent the stripping of some important NavMesh-related code from the build.

Fixed in 2020.1.0a19

  1. Response avatar

    Resolution Note (fix version 2020.1):

    The problem is caused by the NavMeshSettings class being stripped out of Android/iOS builds.

    There are two workarounds:
    1. Disable "Engine Code Stripping" from the player settings of the Android/iOS build.
    2. Bake and save at least one (small) static NavMesh somewhere in the scene. This will cause the NavMeshSettings class to be used and thus not be stripped away.

Comments (4)

  1. Ac89223f6a1fa38b6cec6a283fc5f304?d=mm

    Emanx140

    Feb 09, 2020 21:20

    Still happens in 2019.3.0f6

  2. 7f0f459b8dd65d9e86839d7c6d22fa33?d=mm

    fafnir

    Oct 25, 2019 17:50

    Still happens in 2019.3.0b8

  3. 727f67ff141b27adcb47c9035b8dc94a?d=mm

    danielgsantana

    Oct 05, 2019 18:25

    Still happens in 2019.3.0b6

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