IsaacLab isaaclab not launch

./isaaclab.sh -p scripts/reinforcement_learning/rsl_rl/train.py --task=Isaac-Ant-v0 [INFO] Using python from: /home/ps/miniconda3/envs/lab/bin/python
[INFO][AppLauncher]: Using device: cuda:0 [INFO][AppLauncher]: Loading experience file: /home/ps/IsaacLab/apps/isaaclab.python.kit Loading user config located at: '/home/ps/isaacsim/kit/data/Kit/Isaac-Sim/4.5/user.config.json' [Info] [carb] Logging to file: /home/ps/isaacsim/kit/logs/Kit/Isaac-Sim/4.5/kit_20251107_130120.log 2025-11-07 05:01:20 [0ms] [Warning] [omni.kit.app.plugin] No crash reporter present, dumps uploading isn't available. 2025-11-07 05:01:20 [1ms] [Warning] [omni.ext.plugin] [ext: rendering_modes] Extensions config 'extension.toml' doesn't exist '/home/ps/IsaacLab/apps/rendering_modes' or '/home/ps/IsaacLab/apps/rendering_modes/config' [0.031s] [ext: omni.kit.async_engine-0.0.1] startup [0.238s] [ext: omni.metrics.core-0.0.1] startup [0.238s] [ext: omni.client.lib-1.0.0] startup [0.254s] [ext: omni.blobkey-1.1.2] startup [0.254s] [ext: omni.stats-1.0.1] startup [0.254s] [ext: omni.datastore-0.0.0] startup [0.257s] [ext: omni.client-1.2.2] startup [0.260s] [ext: omni.ujitso.default-1.0.0] startup [0.261s] [ext: omni.hsscclient-1.1.1] startup 2025-11-07 05:01:20 [250ms] [Warning] [omni.datastore] OmniHub is inaccessible [0.263s] [ext: omni.gpu_foundation.shadercache.vulkan-1.0.0] startup [0.266s] [ext: omni.assets.plugins-0.0.0] startup [0.267s] [ext: omni.gpu_foundation-0.0.0] startup [0.270s] [ext: carb.windowing.plugins-1.0.0] startup [0.282s] [ext: omni.kit.renderer.init-0.0.0] startup

|---------------------------------------------------------------------------------------------| | Driver Version: 535.230.02 | Graphics API: Vulkan |=============================================================================================| | GPU | Name | Active | LDA | GPU Memory | Vendor-ID | LUID | | | | | | | Device-ID | UUID | | | | | | | Bus-ID | | |---------------------------------------------------------------------------------------------| | 0 | NVIDIA GeForce RTX 4090 | Yes: 0 | | 49386 MB | 10de | 0 | | | | | | | 2684 | 94a154e4.. | | | | | | | 1 | | |=============================================================================================| | OS: 20.04.6 LTS (Focal Fossa) ubuntu, Version: 20.04.6, Kernel: 5.15.0-140-generic | XServer Vendor: The X.Org Foundation, XServer Version: 12013000 (1.20.13.0) | Processor: Intel(R) Core(TM) i9-14900K | Cores: 24 | Logical Cores: 32 |---------------------------------------------------------------------------------------------| | Total Memory (MB): 31850 | Free Memory: 8360 | Total Page/Swap (MB): 2047 | Free Page/Swap: 17592186044413 |---------------------------------------------------------------------------------------------| [0.727s] [ext: omni.kit.pipapi-0.0.0] startup [0.727s] [ext: omni.kit.pip_archive-0.0.0] startup [0.728s] [ext: omni.pip.compute-1.4.5] startup [0.728s] [ext: omni.pip.cloud-1.1.7] startup [0.730s] [ext: omni.isaac.core_archive-2.3.3] startup [0.731s] [ext: omni.materialx.libs-1.0.6] startup [0.735s] [ext: omni.kit.loop-isaac-1.2.1] startup [0.735s] [ext: omni.kit.test-1.1.2] startup [0.758s] [ext: omni.isaac.ml_archive-2.1.2] startup [0.759s] [ext: omni.kit.telemetry-0.5.1] startup [xcb] Unknown sequence number while appending request [xcb] You called XInitThreads, this is not your fault [xcb] Aborting, sorry about that. [xcb] Extra reply data still left in queue [xcb] This is most likely caused by a broken X extension library [xcb] Aborting, sorry about that. Fatal Python error: Segmentation fault

Thread 0x00007ff842df8740 (most recent call first): File "", line 241 in _call_with_frames_removed File "", line 1176 in create_module File "", line 571 in module_from_spec File "", line 674 in _load_unlocked File "", line 1006 in _find_and_load_unlocked File "", line 1027 in _find_and_load File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/core/init.py", line 12 in File "", line 241 in _call_with_frames_removed File "", line 883 in exec_module File "", line 705 in _load_unlocked File "", line 241 in _call_with_frames_removed

Extension modules: psutil._psutil_linux, psutil._psutil_posix (total: 2) ./isaaclab.sh：行 274: 259664 段错误（核心已转储） ${python_exe} "$@"

Nov 07 '25 06:11 yusongmin1

./isaaclab.sh -p scripts/reinforcement_learning/rsl_rl/train.py --task=Isaac-Ant-v0 --headless [INFO] Using python from: /home/ps/miniconda3/envs/lab/bin/python
[INFO][AppLauncher]: Using device: cuda:0 [INFO][AppLauncher]: Loading experience file: /home/ps/IsaacLab/apps/isaaclab.python.headless.kit Loading user config located at: '/home/ps/isaacsim/kit/data/Kit/Isaac-Sim/4.5/user.config.json' [Info] [carb] Logging to file: /home/ps/isaacsim/kit/logs/Kit/Isaac-Sim/4.5/kit_20251107_124821.log 2025-11-07 04:48:21 [0ms] [Warning] [omni.kit.app.plugin] No crash reporter present, dumps uploading isn't available. 2025-11-07 04:48:21 [1ms] [Warning] [omni.ext.plugin] [ext: rendering_modes] Extensions config 'extension.toml' doesn't exist '/home/ps/IsaacLab/apps/rendering_modes' or '/home/ps/IsaacLab/apps/rendering_modes/config' 2025-11-07 04:48:21 [246ms] [Warning] [omni.usd_config.extension] Enable omni.materialx.libs extension to use MaterialX [xcb] Unknown sequence number while appending request [xcb] You called XInitThreads, this is not your fault [xcb] Aborting, sorry about that. [xcb] Extra reply data still left in queue [xcb] This is most likely caused by a broken X extension library [xcb] Aborting, sorry about that. Fatal Python error: Segmentation fault

Thread 0x00007f0a72edc740 (most recent call first): File "", line 241 in _call_with_frames_removed File "", line 1176 in create_module File "", line 571 in module_from_spec File "", line 674 in _load_unlocked File "", line 1006 in _find_and_load_unlocked File "", line 1027 in _find_and_load File "", line 1050 in _gcd_import File "/home/ps/miniconda3/envs/lab/lib/python3.10/importlib/init.py", line 126 in import_module File "/home/ps/isaacsim/extscache/omni.usd.libs-1.0.1+d02c707b.lx64.r.cp310/pxr/Tf/init.py", line 89 in PreparePythonModule File "/home/ps/isaacsim/extscache/omni.usd.libs-1.0.1+d02c707b.lx64.r.cp310/pxr/Gf/init.py", line 30 in File "", line 241 in _call_with_frames_removed File "", line 883 in exec_module File "", line 688 in _load_unlocked File "", line 1006 in _find_and_load_unlocked File "", line 1027 in _find_and_load File "", line 241 in _call_with_frames_removed File "", line 1176 in create_module File "", line 571 in module_from_spec File "", line 674 in _load_unlocked File "", line 1006 in _find_and_load_unlocked File "", line 1027 in _find_and_load File "", line 1050 in _gcd_import File "/home/ps/miniconda3/envs/lab/lib/python3.10/importlib/init.py", line 126 in import_module File "/home/ps/isaacsim/extscache/omni.usd.libs-1.0.1+d02c707b.lx64.r.cp310/pxr/Tf/init.py", line 89 in PreparePythonModule File "/home/ps/isaacsim/extscache/omni.usd.schema.audio-0.0.0+d02c707b.lx64.r.cp310/OmniAudioSchema/init.py", line 46 in File "", line 241 in _call_with_frames_removed File "", line 883 in exec_module File "", line 688 in _load_unlocked File "", line 1006 in _find_and_load_unlocked File "", line 1027 in _find_and_load File "", line 1050 in _gcd_import File "/home/ps/miniconda3/envs/lab/lib/python3.10/importlib/init.py", line 126 in import_module File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/ext/_impl/custom_importer.py", line 76 in import_module File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/ext/_impl/_internal.py", line 94 in _import_public File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/ext/_impl/_internal.py", line 187 in _custom_importer File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/ext/_impl/_internal.py", line 211 in startup File "/home/ps/IsaacLab/_isaac_sim/kit/kernel/py/omni/ext/_impl/_internal.py", line 328 in startup_extension File "PythonExtension.cpp::startup()", line 2 in File "/home/ps/IsaacLab/_isaac_sim/exts/isaacsim.simulation_app/isaacsim/simulation_app/simulation_app.py", line 427 in _start_app File "/home/ps/IsaacLab/_isaac_sim/exts/isaacsim.simulation_app/isaacsim/simulation_app/simulation_app.py", line 212 in init File "/home/ps/IsaacLab/source/isaaclab/isaaclab/app/app_launcher.py", line 780 in _create_app File "/home/ps/IsaacLab/source/isaaclab/isaaclab/app/app_launcher.py", line 131 in init File "/home/ps/IsaacLab/scripts/reinforcement_learning/rsl_rl/train.py", line 45 in ./isaaclab.sh：行 274: 247418 段错误（核心已转储） ${python_exe} "$@"

Nov 07 '25 06:11 yusongmin1

Thank you for posting this. This is likely an installation issue. Please use #3021 to upgrade.

Nov 07 '25 13:11 RandomOakForest

The solution to this problem can be referred to; it was useful for me. https://github.com/isaac-sim/IsaacLab/issues/2705

Nov 14 '25 08:11 ShineSea