# Har\_dump error when converting flow

**URL:** <https://discourse.mitmproxy.org/t/har-dump-error-when-converting-flow/708>\
**Category:** help\
**Created:** [November 13, 2017, 2:38pm UTC](https://discourse.mitmproxy.org/t/har-dump-error-when-converting-flow/708 "2017-11-13T14:38:06Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![robben1234](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mitmproxy.org/robben1234/32/227_2.png) [@robben1234](https://discourse.mitmproxy.org/u/robben1234)\
**Post date:** [November 13, 2017, 2:38pm UTC](https://discourse.mitmproxy.org/t/har-dump-error-when-converting-flow/708/1 "2017-11-13T14:38:06Z")

</div>

I’m new with mitm, trying to save all intercepted traffic into har or json to work with it later.

I’ve tried to do `mitmproxy -w dump`

and then `mitmproxy -nr dump -s "har_dump.py h.har"`

but got error:

```auto
Script error: TypeError: configure() takes 1 positional argument but 2 were given

Script error: Traceback (most recent call last):
  File "har_dump.py", line 148, in response
    HAR["log"]["entries"].append(entry)
KeyError: 'log'
```