# Unable to interpret the fitting error

**URL:** <https://discourse.pumas.ai/t/unable-to-interpret-the-fitting-error/369>\
**Category:** maximum-likelihood\
**Created:** [July 10, 2020, 7:35pm UTC](https://discourse.pumas.ai/t/unable-to-interpret-the-fitting-error/369 "2020-07-10T19:35:59Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![andreasnoack](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.pumas.ai/andreasnoack/32/22_2.png) [@andreasnoack](https://discourse.pumas.ai/u/andreasnoack)\
**Post date:** [July 20, 2020, 2:21pm UTC](https://discourse.pumas.ai/t/unable-to-interpret-the-fitting-error/369/8 "2020-07-20T14:21:15Z")

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This is a small bug in Pumas. I’ve filed an issue so it should get fixed before the 1.0 release.

Please notice though, that specifying a distribution currently won’t be different from specifying a domain when fitting with `Pumas.FOCEI()`. Eventually, we might make this do MAP estimation but currently the prior is only used for determining the domain. Hence, you should be able to successfully fit the model and call `infer` if you use the version suggested in [Unable to interpret the fitting error](https://discourse.pumas.ai/t/unable-to-interpret-the-fitting-error/369/7)

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