# NotImplementedError when running dbt version check on installing dbt-bigquery

**URL:** <https://discourse.getdbt.com/t/notimplementederror-when-running-dbt-version-check-on-installing-dbt-bigquery/5577>\
**Category:** Help\
**Tags:** bigquery, installation, cli\
**Created:** [December 12, 2022, 10:13pm UTC](https://discourse.getdbt.com/t/notimplementederror-when-running-dbt-version-check-on-installing-dbt-bigquery/5577 "2022-12-12T22:13:21Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![vkarthik21](https://sea2.discourse-cdn.com/flex020/user_avatar/discourse.getdbt.com/vkarthik21/32/1467_2.png) [@vkarthik21](https://discourse.getdbt.com/u/vkarthik21)\
**Post date:** [December 12, 2022, 10:13pm UTC](https://discourse.getdbt.com/t/notimplementederror-when-running-dbt-version-check-on-installing-dbt-bigquery/5577/1 "2022-12-12T22:13:21Z")

</div>

I am trying to install dbt bigquery in my Windows system by running the following pip commands -

```auto
pip install dbt-bigquery

```

Installation has finished successfully but when I run the dbt --version command here is the error I am getting

> Traceback (most recent call last): File “”, line 198, in _run\_module\_as\_main File “”, line 88, in run\_code File "C:\Users\1354750\Documents\code\env\Scripts\dbt.exe\_main.py", line 4, in File “C:\Users\1354750\Documents\code\env\Lib\site-packages\dbt\main.py”, line 2, in from dbt.logger import log\_cache\_events, log\_manager File “C:\Users\1354750\Documents\code\env\Lib\site-packages\dbt\logger.py”, line 16, in from dbt.dataclass\_schema import dbtClassMixin File “C:\Users\1354750\Documents\code\env\Lib\site-packages\dbt\dataclass\_schema.py”, line 15, in from mashumaro import DataClassDictMixin File "C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\_init_.py", line 4, in from mashumaro.serializer.json import DataClassJSONMixin File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\serializer\json.py”, line 28, in class DataClassJSONMixin(DataClassDictMixin): File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\serializer\base\dict.py”, line 16, in **init\_subclass** builder.add\_from\_dict() File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\serializer\base\metaprogramming.py”, line 270, in add\_from\_dict pre\_deserialize = self.get\_declared\_hook( **PRE\_DESERIALIZE** ) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\serializer\base\metaprogramming.py”, line 255, in get\_declared\_hook if not is\_dataclass\_dict\_mixin(cls): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\meta\helpers.py”, line 247, in is\_dataclass\_dict\_mixin return type\_name(t) == DataClassDictMixinPath ^^^^^^^^^^^^ File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\meta\helpers.py”, line 93, in type\_name elif is\_generic(t) and not is\_type\_origin: ^^^^^^^^^^^^^ File “C:\Users\1354750\Documents\code\env\Lib\site-packages\mashumaro\meta\helpers.py”, line 161, in is\_generic raise NotImplementedError NotImplementedError

Prior to the dbt command, I am running this in a Python virtual environment in the ‘code’ folder using the following commands.

```auto
python -m venv env
.\env\Scripts\activate

```

Can someone help me what the error is pointing at?

---

<div class="post-metadata">

**Author:** ![vkarthik21](https://sea2.discourse-cdn.com/flex020/user_avatar/discourse.getdbt.com/vkarthik21/32/1467_2.png) [@vkarthik21](https://discourse.getdbt.com/u/vkarthik21)\
**Post date:** [December 12, 2022, 11:18pm UTC](https://discourse.getdbt.com/t/notimplementederror-when-running-dbt-version-check-on-installing-dbt-bigquery/5577/2 "2022-12-12T23:18:24Z")

</div>

I had an incompatible Python version installed in the system (3.11.x) which was causing the error. Reference - [What version of Python can I use?](https://docs.getdbt.com/faqs/core/install-python-compatibility). The issue is now resolved.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/getdbt/original/1X/a7a7ca1fe379aaf90952b0e13118a817babcd14f.png) [@system](https://discourse.getdbt.com/u/system)\
**Post date:** [December 19, 2022, 11:18pm UTC](https://discourse.getdbt.com/t/notimplementederror-when-running-dbt-version-check-on-installing-dbt-bigquery/5577/3 "2022-12-19T23:18:33Z")

</div>

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