# Issue upgrading MMC

**URL:** <https://cern-ipmc-forum.web.cern.ch/t/issue-upgrading-mmc/92>\
**Category:** General issue\
**Created:** [September 17, 2021, 1:41pm UTC](https://cern-ipmc-forum.web.cern.ch/t/issue-upgrading-mmc/92 "2021-09-17T13:41:35Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![spiwoks](https://cern-ipmc-forum.web.cern.ch/letter_avatar_proxy/v4/letter/s/e19b73/32.png) [@spiwoks](https://cern-ipmc-forum.web.cern.ch/u/spiwoks)\
**Post date:** [April 24, 2022, 2:02pm UTC](https://cern-ipmc-forum.web.cern.ch/t/issue-upgrading-mmc/92/28 "2022-04-24T14:02:17Z")

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Hi Rongkun,

Can you please update your compile.py file to read

> ```auto
> strVar = strVar + chunk.decode("utf-8", "ignore")
> 
> ```

in line 134?

This was mentioned in issue [IPMC Compilation not working](https://cern-ipmc-forum.web.cern.ch/t/ipmc-compilation-not-working/138) and was updated in the ep-ese-be-xtca/ipmc-project gitlab files.

Please let me know if it helps. Cheers,  
Ralf

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