Hello World Tutorial@Isaac Sim 2021.2.0: Cannot execute Jupyter Notebook example

This is the first cell I try to execute. Nucleus is up and running.

import getpass
user = getpass.getuser()
from omni.isaac.kit import SimulationApp
# Set the path below to your desired nucleus server
# Make sure you installed a local nucleus server before this
simulation_app = SimulationApp({"livesync_usd": f'omniverse://localhost/Users/{user}/temp_jupyter_stage.usd'})

This is the output:

Passing the following args to the base kit application:  ['-f', '/home/brunovetter/.local/share/jupyter/runtime/kernel-582a71f2-3704-4181-9083-8a441cdc9d42.json']
MESA-INTEL: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

[Warning] [omni.kit.app.plugin] No crash reporter present, dumps uploading isn't available.
[Info] [carb] Logging to file: /home/brunovetter/.local/share/ov/pkg/isaac_sim-2021.2.0/kit/logs/Kit/Isaac-Sim/2021.2/kit_20211127_204930.log
[0.052s] [ext: omni.kit.pipapi-0.0.0] startup
[0.063s] [ext: omni.kit.pip_archive-0.0.0] startup
[0.067s] [ext: omni.usd.config-1.0.0] startup
[0.069s] [ext: omni.usd.libs-1.0.0] startup
[0.228s] [ext: omni.isaac.pip_archive-0.1.0] startup
[0.414s] [ext: omni.stats-0.0.0] startup
[0.417s] [ext: omni.gpu_foundation-0.0.0] startup
[0.423s] [ext: omni.assets.plugins-0.0.0] startup
[0.424s] [ext: omni.kit.loop-isaac-0.1.0] startup
[0.425s] [ext: omni.kit.async_engine-0.0.0] startup
[0.426s] [ext: omni.appwindow-1.0.0] startup
[0.435s] [ext: omni.client-0.1.0] startup
[0.443s] [ext: omni.kit.test-0.0.0] startup
[0.499s] [ext: omni.kit.renderer.core-0.0.0] startup

|---------------------------------------------------------------------------------------------|
| Driver Version: 470.82      | Graphics API: Vulkan
|=============================================================================================|
| GPU | Name                             | Active | LDA | GPU Memory | Vendor-ID | LUID       |
|     |                                  |        |     |            | Device-ID | UUID       |
|---------------------------------------------------------------------------------------------|
| 0   | NVIDIA GeForce RTX 3080 Laptop.. | Yes: 0 |     | 16384   MB | 10de      | 0          |
|     |                                  |        |     |            | 249c      | 1a6d9cb0.. |
|---------------------------------------------------------------------------------------------|
| 1   | Intel(R) UHD Graphics (TGL GT1)  |        |     | 23892   MB | 8086      | 0          |
|     |                                  |        |     |            | 9a60      | ee98bced.. |
|=============================================================================================|
| OS: Linux brunovetter-Blade-17-Mid-2021-RZ09-0406, Version: 5.11.0-40-generic
| Processor: 11th Gen Intel(R) Core(TM) i9-11900H @ 2.50GHz | Cores: Unknown | Logical: 16
|---------------------------------------------------------------------------------------------|
| Total Memory (MB): 31857 | Free Memory: 13989
| Total Page/Swap (MB): 65535 | Free Page/Swap: 65535
|---------------------------------------------------------------------------------------------|
2021-11-27 19:49:31 [1,009ms] [Warning] [gpu.foundation.plugin] Different GPUs have different availalbe VRAM. The texture streaming system will be limited to the lower VRAM number
[1.147s] [ext: omni.ui-2.5.3] startup
[1.160s] [ext: omni.kit.mainwindow-0.0.0] startup
[1.163s] [ext: omni.kit.uiapp-0.0.0] startup
[1.163s] [ext: omni.usd.schema.physics-1.0.0] startup
2021-11-27 19:49:31 [1,166ms] [Warning] [omni.ext.impl._internal] There is already a module 'pxr.UsdPhysics' in '/home/brunovetter/.local/share/ov/pkg/isaac_sim-2021.2.0/kit/extscore/omni.usd.schema.physics/pxr/UsdPhysics/__init__.py'. Can't import another module with the same name in public space from '/home/brunovetter/.local/share/ov/pkg/isaac_sim-2021.2.0/kit/extsPhysics/omni.usd.schema.physics'.
2021-11-27 19:49:31 [1,171ms] [Warning] [omni.ext.impl._internal] There is already a module 'usd.schema.physics' in '/home/brunovetter/.local/share/ov/pkg/isaac_sim-2021.2.0/kit/extscore/omni.usd.schema.physics/usd/schema/physics/__init__.py'. Can't import another module with the same name in public space from '/home/brunovetter/.local/share/ov/pkg/isaac_sim-2021.2.0/kit/extsPhysics/omni.usd.schema.physics'.
[1.179s] [ext: omni.usd.schema.physx-0.0.0] startup
[1.204s] [ext: omni.usd.schema.isaac-0.1.1] startup
[1.238s] [ext: omni.usd.schema.semantics-0.0.0] startup
[1.243s] [ext: omni.usd.schema.audio-0.0.0] startup
[1.249s] [ext: omni.usd.schema.anim-0.0.0] startup
[1.272s] [ext: omni.timeline-1.0.2] startup
[1.274s] [ext: omni.hydra.scene_delegate-0.1.0] startup
[1.282s] [ext: carb.audio-0.1.0] startup
[1.303s] [ext: omni.kit.commands-0.0.0] startup
[1.310s] [ext: omni.usd-1.4.5] startup
[1.333s] [ext: omni.kit.asset_converter-1.1.42] startup
[1.354s] [ext: omni.services.facilities.base-1.0.0] startup
[1.357s] [ext: omni.services.core-1.1.1] startup
[1.461s] [ext: omni.services.transport.client.base-1.1.0] startup
[1.463s] [ext: omni.services.transport.server.base-1.0.0] startup
[1.464s] [ext: omni.services.client-0.2.3] startup
[1.517s] [ext: omni.kit.agent-0.1.0] startup
[1.519s] [ext: omni.services.transport.server.http-1.0.0] startup
[1.647s] [ext: omni.services.transport.client.http_async-1.0.0] startup
[1.952s] [ext: omni.kit.search_core-1.0.0] startup
[1.953s] [ext: omni.kit.thumbnails.images-0.1.0] startup
[1.957s] [ext: omni.isaac.lula-0.1.0] startup
[1.967s] [ext: omni.kit.widget.filebrowser-2.2.20] startup
[1.973s] [ext: omni.kit.window.popup_dialog-2.0.4] startup
[1.977s] [ext: omni.kit.widget.stage_icons-1.0.2] startup
[1.978s] [ext: omni.kit.menu.utils-1.0.2] startup
[1.986s] [ext: omni.kit.widget.versioning-1.3.4] startup
[1.988s] [ext: omni.kit.widget.path_field-2.0.3] startup
[1.989s] [ext: omni.kit.material.library-1.2.3] startup
[2.062s] [ext: omni.kit.menu.create-1.0.1] startup
[2.063s] [ext: omni.kit.notification_manager-1.0.0] startup
[2.065s] [ext: omni.kit.widget.browser_bar-2.0.2] startup
[2.066s] [ext: omni.kit.context_menu-1.3.2] startup
[2.119s] [ext: omni.kit.window.filepicker-2.4.12] startup
[2.223s] [ext: omni.kit.numpy.common-0.1.0] startup
[2.276s] [ext: omni.debugdraw-0.1.0] startup
[2.280s] [ext: omni.kit.widget.stage-2.6.8] startup
[2.284s] [ext: omni.usdphysics-1.3.14] startup
[2.285s] [ext: omni.kvdb-0.0.0] startup
[2.294s] [ext: omni.kit.window.drop_support-1.0.0] startup
[2.299s] [ext: omni.convexdecomposition-1.3.14] startup
[2.309s] [ext: omni.localcache-0.0.0] startup
[2.318s] [ext: omni.hydra.rtx-0.1.0] startup
[2.324s] [ext: omni.renderer-rtx-0.0.0] startup
[2.325s] [ext: omni.physx-1.3.14-5.1] startup
[2.373s] [ext: omni.kit.widget.graph-1.1.4] startup
[2.382s] [ext: omni.kit.window.viewport-0.0.0] startup
[3.213s] [ext: omni.isaac.dynamic_control-0.1.8] startup
[3.222s] [ext: omni.kit.window.extensions-1.0.2] startup
[3.226s] [ext: omni.kit.window.property-1.6.2] startup
[3.227s] [ext: omni.isaac.core-0.1.8] startup
[3.295s] [ext: omni.isaac.ui-0.1.1] startup
[3.301s] [ext: omni.isaac.dr-0.1.8] startup
[3.311s] [ext: omni.kit.window.stage-2.3.4] startup
[3.317s] [ext: omni.isaac.contact_sensor-0.1.0] startup
[3.325s] [ext: omni.kit.stage_templates-1.0.6] startup
[3.330s] [ext: omni.isaac.motion_planning-0.1.7] startup
[3.340s] [ext: omni.kit.window.file-1.3.5] startup
[3.428s] [ext: omni.isaac.kit-0.0.0] startup
[3.429s] [ext: omni.isaac.motion_generation-0.1.1] startup
[3.431s] [ext: omni.kit.window.content_browser-2.4.10] startup
[3.493s] [ext: omni.isaac.dofbot-0.0.0] startup
[3.494s] [ext: omni.isaac.debug_draw-0.1.0] startup
[3.498s] [ext: omni.isaac.jetbot-0.0.0] startup
[3.499s] [ext: omni.isaac.urdf-0.1.10] startup
[3.522s] [ext: omni.kit.profiler.window-1.3.1] startup
[3.536s] [ext: omni.isaac.occupancy_map-0.1.0] startup
[3.566s] [ext: omni.kit.window.script_editor-1.5.0] startup
[3.567s] [ext: omni.kit.widget.live-0.1.0] startup
[3.568s] [ext: omni.kit.widget.layers-1.5.12] startup
[3.579s] [ext: omni.kit.usd_undo-0.1.0] startup
[3.580s] [ext: omni.kit.property.usd-3.11.4] startup
[3.647s] [ext: omni.kit.property.layer-1.1.2] startup
[3.649s] [ext: omni.physx.commands-1.3.14-5.1] startup
[3.658s] [ext: omni.syntheticdata-0.1.6] startup
[3.767s] [ext: omni.kit.property.material-1.7.2] startup
[3.773s] [ext: omni.kit.property.audio-1.0.5] startup
[3.774s] [ext: omni.kit.property.skel-1.0.0] startup
[3.775s] [ext: omni.kit.property.camera-1.0.3] startup
[3.776s] [ext: omni.kit.widget.settings-1.0.0] startup
[3.778s] [ext: omni.kit.property.geometry-1.2.0] startup
[3.779s] [ext: omni.kit.property.light-1.0.4] startup
[3.780s] [ext: omni.kit.property.transform-1.0.2] startup
[3.782s] [ext: omni.isaac.franka-0.0.0] startup
[3.786s] [ext: omni.kit.window.preferences-1.1.5] startup
[3.820s] [ext: omni.Simulation App Starting
Saving a temp livesync stage at  omniverse://localhost/Users/brunovetter/temp_jupyter_stage.usd  ...isaac.surface_gripper-0.1.0] startup
[3.823s] [ext: omni.kit.primitive.mesh-1.0.0] startup
[3.827s] [ext: omni.kit.property.bundle-1.2.4] startup
[3.828s] [ext: omni.isaac.synthetic_utils-0.1.5] startup
[3.834s] [ext: omni.physx.ui-1.3.14-5.1] startup
[3.853s] [ext: omni.isaac.universal_robots-0.0.0] startup
[3.857s] [ext: omni.isaac.python_app-0.0.0] startup
[3.858s] [ext: omni.kit.window.toolbar-1.2.1] startup
[3.866s] [ext: omni.kit.window.console-0.1.0] startup
[3.869s] [ext: omni.physx.demos-1.3.14-5.1] startup
[3.878s] [ext: omni.kit.widget.prompt-1.0.0] startup
[3.882s] [ext: omni.kit.property.physx-0.1.0] startup
[3.936s] [ext: omni.physx.tests-1.3.14-5.1] startup
[4.086s] [ext: omni.isaac.imu_sensor-0.1.0] startup
[4.095s] [ext: omni.isaac.range_sensor-0.1.4] startup
[4.123s] [ext: omni.rtx.window.settings-0.6.0] startup
[4.127s] [ext: omni.physx.vehicle-1.3.14-5.1] startup
[4.146s] [ext: omni.physx.cct-1.3.14-5.1] startup
[4.160s] [ext: omni.isaac.utils-0.1.9] startup
[4.167s] [ext: omni.kit.window.status_bar-0.1.0] startup
[4.168s] [ext: omni.rtx.settings.core-0.5.4] startup
[4.173s] [ext: omni.isaac.kaya-0.0.0] startup
[4.174s] [ext: omni.physx.bundle-1.3.14-5.1] startup
[4.174s] [ext: omni.isaac.sim.python-2021.2.0] startup
[4.174s] app started
2021-11-27 19:49:34 [4,558ms] [Warning] [omni.usd] Default value for render setting "/rtx/iray/rendermode" not found
2021-11-27 19:49:34 [4,559ms] [Warning] [omni.usd] Default value for render setting "/rtx/resourcemanager/textureCachePath" not found
2021-11-27 19:49:34 [4,559ms] [Warning] [omni.usd] Default value for render setting "/rtx/shaderDb/cachePermutationIndex" not found
2021-11-27 19:49:34 [4,560ms] [Warning] [omni.usd] Default value for render setting "/rtx/verifyDriverVersion/enabled" not found
Done.
2021-11-27 19:49:34 [4,563ms] [Error] [omni.usd] ERROR! Cannot save layer anon:0x1199d0d0:World0.usd to new path as new path omniverse://localhost/Users/brunovetter/temp_jupyter_stage.usd cannot be opened.
2021-11-27 19:49:34 [4,563ms] [Error] [omni.usd] Failed to save layer anon:0x1199d0d0:World0.usd to new path omniverse://localhost/Users/brunovetter/temp_jupyter_stage.usd
Simulation App Startup Complete

Any help appreciated.
Bruno

Found the mistake. The user I use in Omniverse is not the user of my workstation (which is retrieved by the code in the cell). That user had no permissions on Nucleus. After adding this user it works.

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