---
title: 常见使用问题
description: "1. ERROR: Can not perform a '--user' install. User site-packages are not visible in this virtualenv."
url: https://www.hikunpeng.com/document/detail/zh/kunpengdevkithistory/hgcc/hist-hgcc/kunpenghgcc_06_0075.html
sourcePath: /source/zh/kunpengdevkithistory/hgcc/hist-hgcc/kunpenghgcc_06_0075.html
indexId: b81a441ae39014a377ec2e79e66f1f35a9025e6e79a7ec2714196ace971a7bcd71
---
# 常见使用问题

1. ERROR: Can not perform a '--user' install. User site-packages are not visible in this virtualenv.

解决方案：

修改gcc-12.3.1-2025.03-aarch64-linux/bin/install_ai4c.sh，删去pip install命令里的--user


2. pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

解决方案：

增加镜像源到install_ai4c.sh的pip install指令：

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple some-package