# Unequal number of species for tagged species and expected species in CMAQ-ISAM

**URL:** <https://forum.cmascenter.org/t/unequal-number-of-species-for-tagged-species-and-expected-species-in-cmaq-isam/1742>\
**Category:** CMAQ-ISAM\
**Created:** [August 27, 2020, 4:47am UTC](https://forum.cmascenter.org/t/unequal-number-of-species-for-tagged-species-and-expected-species-in-cmaq-isam/1742 "2020-08-27T04:47:45Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![RockeyZ](https://avatars.discourse-cdn.com/v4/letter/r/51bf81/32.png) [@RockeyZ](https://forum.cmascenter.org/u/RockeyZ)\
**Post date:** [September 7, 2020, 2:15am UTC](https://forum.cmascenter.org/t/unequal-number-of-species-for-tagged-species-and-expected-species-in-cmaq-isam/1742/3 "2020-09-07T02:15:07Z")

</div>

Hi, I changed the SA\_DEFN.F, but I couldn’t get SA files. I posted a new issue in the forum: [Missing ISAM output files (CCTM\_SA\_\* files)](https://forum.cmascenter.org/t/missing-isam-output-files-cctm-sa-files/1746). In the fixed run log file, it never shows the following line:

```
Reading ISAM control file

```

Did you ever encounter such problem? Thanks!

---

_[View the full topic](https://forum.cmascenter.org/t/unequal-number-of-species-for-tagged-species-and-expected-species-in-cmaq-isam/1742)._