Empty simulator screen

Hello. I am facing a serious probblem. while I am trying to create a simple application using magic leap simulator and unity, the simulator window is showing nothing. I am using windows 11. kindly share the solution. thanks in advance.

Hello @brintodibyendu, please give us as much detail as possible regarding the issue you're experiencing. Also let us know what the app is intended for as not all features are compatible with the App Simulator.

Unity Editor version:
ML2 OS version:
MLSDK version:
Host OS: Windows 11

unity edition: 2023.1.0a26
MLSDK:VERSION 1.1.0
nothing is showing even in the initial window of the magic leap emulator
Also my graphics card is Intel Iris Xe graphics

Thank you @brintodibyendu. Are you getting anything in the error logs? MagicLeap Developer Documentation

There is nothing in the console. log file is like that
235814.337 ZISimulator.exe:24616~5f40 E [Transport.cpp:156] Failed to serialize data 1
235814.337 ZISimulator.exe:24616~5f40 E [ResourceViewer.cpp:90] Unable to send resources
235836.050 ZISimulator.exe:24616~5f40 E [GLRenderDeviceContext_win_linux.cpp:80] Failed to initialize external memory
235836.281 Unity.exe:8344~3088 ZIF W [zi_virtual_room_impl.cpp:322] SimulatorManagerSparseDevice stopped
235836.281 Unity.exe:8344~3088 ZIF W [zi_ext_device_handle_impl.inl:151] SimulatorManagerSparseDevice stopped
235836.483 Unity.exe:8344~3088 ZIF W [zi_virtual_room_impl.cpp:348] SimulatorPeripheralSparseDevice stopped
235836.050 ZISimulator.exe:24616~5f40 E [Transport.cpp:156] Failed to serialize data 1
235836.050 ZISimulator.exe:24616~5f40 E [ResourceViewer.cpp:90] Unable to send resources
235836.068 ZISimulator.exe:24616~5f40 I [ViewportRender.cpp:217] Shutting down viewport renderer's gfx system
235836.610 ZISimulator.exe:24616~5f40 E [GLPlatformUtilsWindows.cpp:94] wglMakeCurrent failed 6 0000000000000000 0000000000000000
235753.072 Unity.exe:8344~65a0 I [UnityZIFAsync.h:75] [ZIF] Starting ZIF Unity simulator session
235839.910 Unity.exe:8344~5f14 I [UnityZIFRender.cpp:337] Releasing ZI Renderer Handles
235839.910 Unity.exe:8344~3f40 I [UnityZIFRender.cpp:337] Releasing ZI Renderer Handles (repeated 1 time)
235839.910 Unity.exe:8344~1768 E [UnityZIFSession.cpp:296] Failed to connect to ZIF target session, no Zero Iteration server is running
235839.910 Unity.exe:8344~1768 I [UnityZIFSession.cpp:93] Releasing ZI Session Handles
235839.910 Unity.exe:8344~1768 I [UnityZIFServer.cpp:121] Releasing ZI Server Handles
235839.910 Unity.exe:8344~3088 I [UnityZIFSession.cpp:93] Releasing ZI Session Handles
235839.910 Unity.exe:8344~1768 I [UnityZIFServer.cpp:98] Creating ZI Server Handles
235839.911 Unity.exe:8344~1768 I [UnityZIFSession.cpp:78] Creating ZI Session Handles
235839.911 Unity.exe:8344~3088 I [UnityZIFServer.cpp:121] Releasing ZI Server Handles
235839.911 Unity.exe:8344~3088 I [UnityZIFServer.cpp:98] Creating ZI Server Handles
000541.551 Unity.exe:8344~61b4 I [UnityZIFRender.cpp:134] About to shutdown Scene View renderer on thread 25012 61b4
000541.551 Unity.exe:8344~5f14 I [UnityZIFRender.cpp:337] Releasing ZI Renderer Handles
000541.551 Unity.exe:8344~5f14 I [UnityZIFRender.cpp:857] About to stop worker thread...
000541.556 Unity.exe:8344~61b4 I [UnityZIFRender.cpp:134] About to shutdown Device View renderer on thread 25012 61b4
000541.556 Unity.exe:8344~3f40 I [UnityZIFRender.cpp:337] Releasing ZI Renderer Handles
000541.556 Unity.exe:8344~3f40 I [UnityZIFRender.cpp:857] About to stop worker thread...
000542.776 Unity.exe:8344~61b4 I [UnityZIFRender.cpp:134] About to shutdown Scene View renderer on thread 25012 61b4

Hi @brintodibyendu Please submit App Sim Diagnostic Logs by navigating to App Sim > Save Diagnostic Logs. Details are in the error reporting link in my previous message above. There's more info we need to understand the problem. Thanks again.

Thank you. here is the log zip.
MLHubLogs-20230130-162939-win.zip (4.9 MB)

Thank you @brintodibyendu. I spoke to our engineers. Question for you: has AppSim ever worked for you? We only support NVIDIA and AMD GPUs.

215856.684 <ml_hub.exe:3788~10afc> ZIF I [zi_renderer_impl.cpp:365] OpenGL Vendor: Intel 215856.684 <ml_hub.exe:3788~10afc> ZIF I [zi_renderer_impl.cpp:366] OpenGL Render: Intel(R) Iris(R) Xe Graphics

There are a lot of errors like the following throughout, which indicate it’s not handling Vulkan calls properly:

221429.473 <ZISimulator.exe:69348~11784> E [VulkanSurfaceResource.cpp:157] Failed to call vkAllocateMemory fffffffe 221429.474 <ZISimulator.exe:69348~11784> E [GLRenderDeviceContext_win_linux.cpp:80] Failed to initialize external memory 221429.474 <ZISimulator.exe:69348~11784> E [Transport.cpp:156] Failed to serialize data 1 221429.474 <ZISimulator.exe:69348~11784> E [ResourceViewer.cpp:90] Unable to send resources

Our engineer suspects a possible way around this is to (1) try to update graphics drivers; if that doesn’t work then 2) turn off Settings > Application Simulator > General > Hardware acceleration (from ML Hub).

The latter setting requires using ML Hub to launch App Sim.

Please let me know if this unblocks you, and thank you for posting on the Magic Leap 2 Forum.

Thank you. Not it did not work so far. i probably need to buy a new machine which has nvidia graphics card.