Failed to load 'Assets/Mapbox/Core/Plugins/sqlite/x64/sqlite3.dll

[gannebamm]

Hi there,
I am unable to develop with Unity 2017.1.1f1 and Mapbox SDK 1.2 on a Win10 OS x64 with Visual Studio 2017 Community Edition. I later want to deploy the app to a Hololens (x86). If I start a completly new project with the mapbox sdk 1.2 and try to 'play' the MeshGeneration.uniy example it gives me the following error:

Failed to load 'Assets/Mapbox/Core/Plugins/sqlite/x64/sqlite3.dll' with error 'Eine DLL-Initialisierungsroutine ist fehlgeschlagen. '. Mapbox.Platform.MbTiles.MbTilesDb:openOrCreateDb(String) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/MbTiles/MbTiles.cs:134) Mapbox.Platform.MbTiles.MbTilesDb:openOrCreateDb(String) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/MbTiles/MbTiles.cs:132) Mapbox.Platform.MbTiles.MbTilesDb:.ctor(String, Nullable1) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/MbTiles/MbTiles.cs:32) Mapbox.Platform.Cache.MbTilesCache:initializeMbTiles(String) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/Cache/MbTilesCache.cs:101) Mapbox.Platform.Cache.MbTilesCache:Get(String, CanonicalTileId) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/Cache/MbTilesCache.cs:124) Mapbox.Platform.Cache.CachingWebFileSource:Request(String, Action1, Int32, CanonicalTileId, String) (at Assets/Mapbox/Core/mapbox-sdk-cs/Platform/Cache/CachingWebFileSource.cs:112) Mapbox.Unity.MapboxAccess:Request(String, Action1, Int32, CanonicalTileId, String) (at Assets/Mapbox/Unity/MapboxAccess.cs:157) Mapbox.Map.Tile:Initialize(IFileSource, CanonicalTileId, String, Action) (at Assets/Mapbox/Core/mapbox-sdk-cs/Map/Tile.cs:139) Mapbox.Unity.MeshGeneration.Factories.MapImageFactory:OnRegistered(UnityTile) (at Assets/Mapbox/Unity/MeshGeneration/Factories/MapImageFactory.cs:89) Mapbox.Unity.MeshGeneration.Factories.AbstractTileFactory:Register(UnityTile) (at Assets/Mapbox/Unity/MeshGeneration/Factories/AbstractTileFactory.cs:50) Mapbox.Unity.Map.AbstractMapVisualizer:LoadTile(UnwrappedTileId) (at Assets/Mapbox/Unity/Map/AbstractMapVisualizer.cs:158) Mapbox.Unity.Map.AbstractMap:TileProvider_OnTileAdded(UnwrappedTileId) (at Assets/Mapbox/Unity/Map/AbstractMap.cs:152) Mapbox.Unity.Map.AbstractTileProvider:AddTile(UnwrappedTileId) (at Assets/Mapbox/Unity/Map/AbstractTileProvider.cs:33) Mapbox.Unity.Map.RangeTileProvider:OnInitialized() (at Assets/Mapbox/Unity/Map/RangeTileProvider.cs:20) Mapbox.Unity.Map.AbstractTileProvider:Initialize(IMap) (at Assets/Mapbox/Unity/Map/AbstractTileProvider.cs:22) Mapbox.Unity.Map.BasicMap:Initialize(Vector2d, Int32) (at Assets/Mapbox/Unity/Map/BasicMap.cs:20) Mapbox.Unity.Map.AbstractMap:Start() (at Assets/Mapbox/Unity/Map/AbstractMap.cs:131)

[wilhelmberg]

@gannebamm I just tried and I'm not able to reproduce with the 1.2.0 SDK.

Coud you check if your settings look like this:
for Assets/Mapbox/Core/Plugins/sqlite/x64/sqlite3.dll

for Assets/Mapbox/Core/Plugins/sqlite/x86/sqlite3.dll

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Also check if you have Microsoft Visual C++ Redistributable runtime installed.
From the top of my head I think 2013 is required.

You can get them here:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

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If you got past this, remember to install SQLite for Universal Windows Platform into your UWP project for HoloLens:

https://www.mapbox.com/mapbox-unity-sdk/docs/windowsstore-uwp-hololens.html

[gannebamm]

I have found the issue: It was due to a not installed .net Framework 3.5. I had to install it by the dsim command with the win10 image.

[wilhelmberg]

Interesting.
Glad you found the solution.
Thanks for posting back ❤️