# RuntimeError: can't start new thread

**URL:** <https://forums.docker.com/t/runtimeerror-cant-start-new-thread/138142>\
**Category:** Docker Desktop\
**Tags:** docker, build, windows\
**Created:** [October 19, 2023, 6:37am UTC](https://forums.docker.com/t/runtimeerror-cant-start-new-thread/138142 "2023-10-19T06:37:23Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![asofyan](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/asofyan/32/43210_2.png) [@asofyan](https://forums.docker.com/u/asofyan)\
**Post date:** [November 11, 2023, 1:28am UTC](https://forums.docker.com/t/runtimeerror-cant-start-new-thread/138142/2 "2023-11-11T01:28:04Z")

</div>

pip uses thread to show progress bar. Try to disable it:

RUN pip install --progress-bar off -r requirements.txt

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_[View the full topic](https://forums.docker.com/t/runtimeerror-cant-start-new-thread/138142)._