问题

安装Odoo源码和所需的依赖后，运行以下命令：

python3 odoo-bin --addons-path addons -r odoo -w odoo

出现以下错误：

ImportError: dlopen(/Users/nasko/odoo_mac/odoo/venv/lib/python3.9/site-packages/lxml/etree.cpython-39-darwin.so, 0x0002): symbol not found in flat namespace ' _exsltDateXpathCtxtRegister '

如何解决这个问题？

我尝试重新安装`psql`，但没有任何变化。

<details>
<summary>英文:</summary>

After installing Odoo from source and requirements I run 

    python3 odoo-bin --addons-path addons -r odoo -w odoo  and get 

I get the following error:

    ImportError: dlopen(/Users/nasko/odoo_mac/odoo/venv/lib/python3.9/site-packages/lxml/etree.cpython-39-darwin.so, 0x0002): symbol not found in flat namespace &#39;_exsltDateXpathCtxtRegister&#39;

How can I solve this?

I have tried to reinstall `psql` but nothing happen.

</details>


# 答案1
**得分**: 1

你需要手动创建这个库。可以在[这里][1]找到描述。

我已执行以下步骤：

    curl -LO https://github.com/lxml/lxml/releases/download/lxml-4.9.3/lxml-4.9.3.tar.gz
    tar xzf lxml-4.9.3.tar.gz
    cd lxml-4.9.3
    python3.9 setup.py build --static-deps
    STATIC_DEPS=true python3.9 setup.py install --static-deps

  [1]: https://lxml.de/build.html#building-lxml-on-macos-x

<details>
<summary>英文:</summary>

You have to create the library manually. You can find a description [here][1].

I have executed these steps:

    curl -LO https://github.com/lxml/lxml/releases/download/lxml-4.9.3/lxml-4.9.3.tar.gz 
    tar xzf lxml-4.9.3.tar.gz
    cd lxml-4.9.3
    python3.9 setup.py build --static-deps
    STATIC_DEPS=true python3.9 setup.py install --static-deps


  [1]: https://lxml.de/build.html#building-lxml-on-macos-x

</details>