Vllm No Module Named Torch. function_base' due to NumPy 2. 6 installed with homebrew. 2 N

function_base' due to NumPy 2. 6 installed with homebrew. 2 No module named 'amdsmi' No module named 'libtpu' No module named 'intel_extension_for_pytorch' #24576 Open tanghui886 opened on Sep 10, 2025 Build from source You can also build and install vLLM from source: $ git clone https://github. _C' So, why this happened Oct 23, 2025 · Your error, “There is no module or parameter named ‘language_model’ in LlamaForCausalLM,” indicates that vLLM is trying to load your fine-tuned model as a Llama architecture, not as a Mistral 3. #5077 Add async exponential while model executing. git cd vllm conda install -y ccache We recommend leveraging uv to automatically select the appropriate PyTorch index at runtime by inspecting the installed CUDA driver version via --torch-backend=auto (or UV_TORCH_BACKEND=auto). This works: A high-throughput and memory-efficient inference and serving engine for LLMs Sep 4, 2025 · [Bug]: module 'triton. cuda at vllm/setup. _C'错误通常是因为缺少所需的库或模块。本文将解释该错误的原因，并提供几种可能的解决方案。 Aug 29, 2024 · Your current environment Collecting environment information WARNING 08-29 12:39:01 _custom_ops. 8 Nvidia GPUs 🐛 Describe the bug Following #19260, I tried to implement reranking with Qwen/Qwen3-Reranker-0. lib. Note #703 - ModuleNotFoundError: No module named 'torch' Issue - State: open - Opened by Xephier102 11 months ago - 6 comments Dec 3, 2025 · I am installing inference package, but got this error, I do have torch installed. Nov 19, 2025 · This section provides technical information for developers who want to work on, extend, or contribute to nano-vllm. It is able to automatically detect child modules and parameters while iterating over the weights only once. Sep 20, 2024 · vllm-project / vllm Public Sponsor Notifications You must be signed in to change notification settings Fork 12. I am using python 3. envs import Apr 1, 2024 · Your current environment Collecting environment information WARNING 04-02 01:12:23 ray_utils. device(torch. distributed'。分布式训练是指将计算任务分散到多个计算节点上进行并行计算的训练方式。Pytorch提供了torch. 11. envs import environment_variables ModuleNotFoundError: No module named 'vllm' How you are installing vllm conda create -n vllm python=3. 04. Oct 9, 2024 · I'm running the command below to install instructlab, but I'm receiving the error message ModuleNotFoundError: No module named 'torch' when installing flash-attn. Nov 28, 2023 · Hi @Kawai1Ace, it seems you are using the latest main branch of vLLM. In Xinference version 1. 5-0. Module. It covers the essential steps to get vLLM running on your system and execute your first inference requests using Nov 27, 2025 · I am following installation guide on Windows 11 x64. i don't find in the documentation and in the past issues CSDN桌面端登录 Lisa 1983 年 1 月 19 日，苹果公司推出 Lisa。Lisa 为全球第一款搭载图形用户界面和鼠标的商用个人计算机，配置了 5 MHz 的摩托罗拉 68000 微处理器。 22100 Oct 6, 2024 · Fix the 'ModuleNotFoundError: No module named 'torch'' in Python. py Collecting environment information WARNING 07-22 17:54:45 _custom_ops. py:20: UserWarning: Failed to initialize NumPy: No module named 'numpy' (Triggered internally at /pytorch/torch/csrc/utils/tensor_numpy. See screenshot. ) Dec 26, 2023 · C:\Users\botao\AppData\Local\Temp\pip-build-env-d2ffimq3\overlay\Lib\site-packages\torch\nn\modules\transformer. py", line 17, in from vllm. _inductor'”: If you get this error, it’s likely your installation is corrupt or your package is outdated. Please let me know. g. language' has no attribute 'constexpr_function' #24289 Open ZanePoe opened on Sep 4, 2025 May 20, 2025 · File "/users/congcongchen/code/vllm/vllm/collect_env. \torch\csrc\utils\tensor_numpy. This article will guide you through several solutions to resolve this common issue. 4 --port 8123 服务异常退出，报错无法分配到显存 Jan 4, 2026 · This document provides detailed instructions for building vLLM Kunlun from source code. MindSpeed is an NPU-optimized fork of Megatron-LM that provides enhanced performance and featu 2 days ago · This page documents common installation problems, dependency conflicts, and environment configuration issues when setting up DataFlow. 3. # This may take 5-10 minutes. See Issue #8420 for more Although we recommend using conda to create and manage Python environments, it is highly recommended to use pip to install vLLM. py An error occour : ModuleNotFoundError: No module named 'vllm. py:20: UserWarning: Failed to initialize NumPy: No module named 'numpy' (Triggered internally at C:\actions-runner\_work\pytorch\pytorch\builder\windows\pytorch\torch\csrc\utils\tensor_numpy. 4. Extends the torch. I have a venv setup for vllm, and have it installed and working fine with non Mixtral models. For g Jan 9, 2026 · 之后启动第一个推理服务：VLLM_USE_MODELSCOPE=True vllm serve Qwen/Qwen3-0. parameter by taking in a linear weight loader. It covers the development environment, codebase structure, architectural patterns, e Mar 11, 2024 · C:\Users\priya\AppData\Local\Temp\pip-build-env-_bbnsxgu\overlay\Lib\site-packages\torch\nn\modules\transformer. This is independent of model, and before the model starts to load. 6k次，点赞5次，收藏2次。使用modelscope下载。_vllm modulenotfounderror: no module named 'resource We would like to show you a description here but the site won’t allow us. 8 (which uses vllm v0. We will update to 2. git $ cd vllm $ pip install -e . Jul 31, 2025 · [Usage]: ModuleNotFoundError: No module named 'vllm. It covers package version constraints, optional dependency groups Nov 5, 2025 · Finally put together a recipe for compiling VLLM from source on Strix Halo. See this issue for more Although we recommend using conda to create and manage Python environments, it is highly recommended to use pip to install vLLM. num_moe Jan 4, 2026 · This document provides solutions to common issues encountered when using vLLM Kunlun. Oct 7, 2023 · While I can't install vllm in an editable way, but installation is success with pip install vllm. 2 (Pixtral/Mistral3) model. Note Dec 9, 2024 · Your current environment Traceback (most recent call last): File "/mnt/MSAI/home/cephdon/sources/vllm/collect_env. _C'") PyTorch + image_mean = torch. Feb 8, 2025 · vllm-project / vllm Public Sponsor Notifications You must be signed in to change notification settings Fork 12. 9 Linux We would like to show you a description here but the site won’t allow us. Tip Jan 6, 2026 · Your current environment As the guide of doc, install vllm by pip, import vllm is ok but when execute python examples/offline_inference/basic/basic. Please note that while it worked yesterday, it may stop working tomorrow if they introduce any breaking changes. py at main · vllm-project/vllm · GitHub. com/vllm-project/vllm. I also only started using the image a couple of house ago. cpp:84. 12 -y conda activate vllm git clone https://github. py` here Model Input Dumps No response 🐛 Describe the bug Start service： vllm serve /models/hugging Jun 18, 2024 · I also tried building vllm from source (pip install -e . Tip def_generate_random_fp8(tensor:torch. 11? Pytorch 分布式训练在本文中，我们将介绍Pytorch中的分布式训练以及可能遇到的错误提示'No module named torch. vllm_flash_attn. config=vllm_config. md 139 Install for 5090 GPU in the Ubuntu22. Could anyone … Oct 6, 2024 · If you've encountered the error "ModuleNotFoundError: No module named 'torch'" when trying to import PyTorch in your Python script, don't worry. 0 / rescale_factor) + image_std = torch. Mar 20, 2024 · /tmp/pip-build-env-nc10d9u9/overlay/lib/python3. py` Your output of `python collect_env. This is intended for developers who want to modify the codebase, contribute to the project, or require custom bu Model Implementation vLLM If vLLM natively supports a model, its implementation can be found in vllm/model_executor/models. It covers installation problems, runtime errors, hardware configuration issues, and model-specific problems. model_config. _C with ModuleNotFoundError("No module name Jun 17, 2024 · DarkLight1337 changed the title [Misc]: ModuleNotFoundError: No module named 'numpy. 5 PyTorch Commit: b3e60ee05250a0b3289f4611d916e8ac4b0a0a78 Fix broken torch. my question is what should i install to have. This guide offers solutions like correct installation, environment management, and If you've Sep 21, 2025 · [Bug]:ModuleNotFoundError: No module named 'flash_attn. 0+cu128 cuda : 12. #4501 Remove the transpose step after attention and switch to transpose_batchmatmul #5390 To optimize the performance in small batch size scenario, an attention operator with flash decoding function is offered, please refer Apr 22, 2005 · Conversations Install for 5090 GPU in the Ubuntu22. Docker compose to run vLLM on Windows. , cu128), set --torch-backend=cu128 (or UV_TORCH_BACKEND=cu128). 6k Feb 28, 2025 · every time the issue below pops up "ModuleNotFoundError: No module named 'vllm. Building v… 5 days ago · This document details the implementation of parallelism strategies in vLLM-Omni's diffusion module, focusing on distributed execution across multiple GPUs. AutoWeightsLoader Helper class to load weights into a torch. 4 能够成功启动启动第二个推理服务：VLLM_USE_MODELSCOPE=True vllm serve Qwen/Qwen2. It covers package version constraints, optional dependency groups Build from source You can also build and install vLLM from source: $ git clone https://github. _C. After all these, the code that I run still says ModuleNotFoundError: No module named ‘torch’. Using lmcache v0. How to resolve this issue for window installation? Nov 19, 2025 · This page documents the utility functions and infrastructure components that support the core nano-vLLM system. ) Oct 9, 2025 · 本指南深入解析vLLM高性能推理引擎架构，涵盖核心创新PagedAttention与连续批处理技术，结合代码结构、学习路径与实践建议，系统指导用户从入门到贡献源码的全过程。 Mar 26, 2025 · Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills Jan 6, 2025 · 文章浏览阅读1. A framework for efficient model inference with omni-modality models We would like to show you a description here but the site won’t allow us. layers' #22007 New issue Closed as not planned Oct 21, 2024 · Due to the way torch bindings work for custom kernels, we have to pin the torch version in vllm. device('cpu'), Dec 18, 2025 · vLLM is a fast and easy-to-use library for LLM inference and serving. Oct 30, 2025 · Traceback (most recent call last): File "/data/pyl/DeepSeek-OCR-vllm/run_dpsk_ocr_pdf. Contribute to aneeshjoy/vllm-windows development by creating an account on GitHub. 5 days ago · Community maintained hardware plugin for vLLM on Ascend - vllm-project/vllm-ascend 19 hours ago · Expected behavior / 期待表现 The error attributs to the removal of VLLM_USE_V1 in vllm since Nov 12, 2025 (vllm-project/vllm#28204). These follow the Hardware-Pluggable RFC. py:276: UserWarning: Failed to initialize NumPy: No module named 'numpy' (Triggered internally at /pytorch/torch/csr Feb 23, 2019 · ModuleNotFoundError: No module named 'torch' The system goes outside the environment to execute call python. 5B-Instruct --gpu-memory-utilization=0. version. I took into consideration the python environment I was using. expert_weights=[]# Set MoE hyperparametersself. _C with ModuleNotFoundError("No module name Installation vLLM supports the following hardware platforms: GPU NVIDIA CUDA AMD ROCm Intel XPU CPU Intel/AMD x86 ARM AArch64 Apple silicon IBM Z (S390X) Hardware Plugins The backends below live outside the main vllm repository and follow the Hardware-Pluggable RFC. 0) gives the below error. 2. To select a specific backend (e. I have been installing pytorch multiple times. After I update my driver to 535. 16. _get_default_device()), # torch. model_executor. 5 once our dependencies (in particular - xformers) release with 2. 0, VLLM_USE_V1 is still used in \xinference\model\embedding\vllm\core. currently pip install Apr 30, 2021 · ModuleNotFoundError: No module named '_lzma' vision Xanthan (Prithviraj Kanaujia) April 30, 2021, 8:17am 1 5 days ago · This page provides a quick introduction to installing and using vLLM for LLM inference. hf_configself. "vllm" will use the vLLM model implementation. parallel_utils'. Originally developed in the Sky Computing Lab at UC Berkeley, vLLM has evolved into a community-driven project with contributions from both academia and industry. tensor(image_mean, device=device) * (1. py", line 32, in llm = LLM( File "/data/anaconda3/envs/ragdemovllm/lib/python3 “No module named ‘torch. init()self. Tensor", + do_rescale: bool, + rescale_factor: float, vLLM provides an HTTP server that implements OpenAI's Completions API, Chat API, and more! This functionality lets you serve models and interact with them using an HTTP client. 0 release on Jun 17, 2024 Nov 12, 2025 · [Bug]: ValueError: There is no module or parameter named 'mlp_AR' in TransformersForCausalLM #28517 Open jiaohuix opened on Nov 11, 2025 · edited by jiaohuix Hardware Plugins vLLM supports third-party hardware plugins that live outside the main vllm repository. model=Glm4MoeLiteMultiTokenPredictor(vllm_config=vllm_config,prefix=maybe_prefix(prefix,"model"))self. These models are what we list in supported text models and supported multimodal models. 4k次。vLLM install from source, bug fixed_modulenotfounderror: no module named 'vllm Jun 3, 2025 · Your current environment Your current environment Trying to install vllm, got installed and then got this error. Jul 22, 2024 · Your current environment python collect_env. py:18] Failed to import from vllm. For distributed infere Feb 14, 2025 · vLLM是一个快速且易于使用的LLM推理和服务库。企业级应用比较普遍，尝试安装相关环境，尝试使用。具体选择什么版本，可参考：flash-attention保姆级安装教程基于cuda跟torch的版本考虑，笔者选择如下版本 Build from source You can also build and install vLLM from source: $ git clone https://github. Add l2norm triton kernel #4595 Add new pattern for AddRmsnormQuant with SP, which could only take effect in graph mode. Dec 18, 2025 · vLLM is a fast and easy-to-use library for LLM inference and serving. _version' from . Compatibility Errors: Libraries like TensorFlow or TensorBoard might clash with older PyTorch versions. _C module is built when you install vLLM. . nn. Tensor,low:float,high:float,)->None:# NOTE (zhaoyang): Due to NaN and Inf representation for fp8 data type,# it may occur Inf or Oct 28, 2025 · Your current environment The output of `python collect_env. Mar 22, 2024 · 在Python编程中，遇到ModuleNotFoundError: No module named 'vllm. tensor(image_std, device=device) * (1. The primary focus is on model loading and weight management, which handles loading pre-t Dec 22, 2023 · I am trying to install megablocks for use with vllm. py` vllm: 17c540a993af88204ad1b78345c8a865cf58ce44 vllm-ascend: main 🐛 Describe the bug Run: vllm serve Hardware Plugins vLLM supports third-party hardware plugins that live outside the main vllm repository. _C with ModuleNotFoundError("No module named 'vllm. Aug 12, 2023 · Hey Everyone, I am following the instructions for Lab 1, and haven’t made any changes to the code that is provided but getting an error saying that “No module named ‘torch. 7. Could you help take a look? Thank you! Mar 15, 2025 · Your current environment RuntimeWarning: Failed to read commit hash: No module named 'vllm. But obviously, it is wrong. This can cause issues when vLLM tries to use NCCL. This is because pip can install torch with separate library packages like NCCL, while conda installs torch with statically linked NCCL. Build from source You can also build and install vLLM from source: $ git clone https://github. py:14] Failed to import from vllm. version import version, __version_tuple # isort:skip . Module,SupportsPP,Glm4MixtureOfExperts):definit__(self,*,vllm_config:VllmConfig,prefix:str=""):super(). Jul 6, 2025 · Your current environment vLLM Production Stack Helm chart K8s CUDA 12. 104. device = torch. Did you install vLLM from source? The vllm. md 解决 vLLM 安装问题：PyTorch 和 CUDA 版本匹配安装. py", line 15, in <module> from vllm. flash_attn_interface' #25343 New issue Closed 文章浏览阅读5. function_base' [Installation]: `ModuleNotFoundError`: No module named 'numpy. venv) PS D:\\Experiments\\fara> vllm serve "microsoft/Fara-7B" --port 5000 --dtype auto Traceback (most recent call last): File Oct 16, 2024 · Your current environment The output of `python collect_env. config import (#104477) GitHub Aug 18, 2025 · Please add to docs an advice of how to install vllm with all its dependencies, but without downgrading already-installed pytorch version E. _C’”. 12/site-packages/torch/_subclasses/functional_tensor. py:70] Failed to import Ray with ModuleNotFoundError("No module named 'ray'"). 6B, Qwen/Qwen3-Rer The Qwen3-VL-Embedding and Qwen3-VL-Reranker model series are the latest additions to the Qwen family, built upon the recently open-sourced and powerful Qwen3-VL foundation model. This is because pip can install torch with separate library packages like NCCL, while conda installs torch with statically linked NCCL. Jun 10, 2024 · How would you like to use vllm when i want to delete the model i have the exception: ModuleNotFoundError: No module named 'vllm. 0 / rescale_factor) + do_rescale = False + return image_mean, image_std, do_rescale + + +def rescale_and_normalize( + images: "torch. _inductor. classBasevLLMParameter(Parameter):""" Base parameter for vLLM linear layers. py:20: UserWarning: Failed to initialize NumPy: No module named 'numpy' (Triggered internally at . 05. classGlm4MoeLiteMTP(nn. 6k Star 67. 6B --gpu-memory-utilization=0. vllm serve fails (. See this issue for more The Qwen3-VL-Embedding and Qwen3-VL-Reranker model series are the latest additions to the Qwen family, built upon the recently open-sourced and powerful Qwen3-VL foundation model. distributed模块来支持分布式训练，但在使用时可能会遇到这样的错误提示。阅读更多 Aug 1, 2025 · Your current environment /home/sdp/fmt/vllm/vllm_ov_env/lib/python3. 2 and python 3. It covers: - Parallel group initialization Although we recommend using conda to create and manage Python environments, it is highly recommended to use pip to install vLLM. @JZhou3083 I have image pull policy set to always. 12. Oct 21, 2025 · Sure, The issue is the same as outlined above. torch : 2. Sep 10, 2025 · [Bug]: AMD ROCM6. Specifically designed for multimodal information retrieval and cross-modal understanding, this suite accepts diverse 2 days ago · This document explains how to configure and use the MindSpeed backend for training on Huawei Ascend NPUs. 12 (latest version), I got another error messages: Mar 11, 2024 · When I try to pip install vllm, I get the error: Oct 11, 2022 · Hi. _C'" This may be because _C extension module was not built correctly when installing vLLM from source or pip. ) and tried inserting a print statement of torch. ) device: torch. Apr 27, 2024 · Can someone clarify what versions of vllm, pytorch and python work together currently? Is there a recommended clean setup to use vllm with the latest pytorch 2. The weight loading logic for individual modules can be overridden by defining a load_weights method. md "auto" will try to use the vLLM implementation, if it exists, and fall back to the Transformers implementation if no vLLM implementation is available. md 162 解决 vLLM 安装问题：PyTorch 和 CUDA 版本匹配安装. py and the error happens. 8/site-packages/torch/nn/modules/transformer. 8 python: 3. 5k May 28, 2023 · When I run pip install flash-attn, it says that.

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