# MEGAN TXT2IOAPI Execution Error: “ERROR ABORT in subroutine CNVT\_EFS” **URL:** \ **Category:** MEGAN\ **Created:** [September 20, 2022, 11:37am UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584 "2022-09-20T11:37:54Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![rrezaei83](https://avatars.discourse-cdn.com/v4/letter/r/53a042/32.png) [@rrezaei83](https://forum.cmascenter.org/u/rrezaei83)\ **Post date:** [September 20, 2022, 11:37am UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584/1 "2022-09-20T11:37:54Z")
Hi all, I have tried to run the MEGAN3.2 model (compiled by _gfortran_) and I finished the first two steps (Pre-processing and Emission Factor Processing) successfully. I started the last step (Emission Rate Estimator) by executing the _TXT2IOAPI_ program (_run.txt2ioapi.v32.csh_) but I got “_ERROR ABORT in subroutine CNVT\_EFS_”. I was unable to identify the issue’s root cause. The logfile is: ```auto This program uses the EPA-AREAL/MCNC-EnvPgms/BAMS Models-3 I/O Applications Programming Interface, [I/O API] which is built on top of the netCDF I/O library (Copyright 1993, 1996 University Corporation for Atmospheric Research/Unidata Program) and the PVM parallel-programming library (from Oak Ridge National Laboratory). Copyright (C) 1992-2002 MCNC, (C) 1992-2018 Carlie J. Coats, Jr., (C) 2003-2012 Baron Advanced Meteorological Systems, LLC, and (C) 2014-2021 UNC Institute for the Environment. Released under the GNU LGPL License, version 2.1. See URL https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html for conditions of use. ioapi-3.2: $Id: init3.F90 200 2021-05-10 14:06:20Z coats $ Version with PARMS3.EXT/PARAMETER::MXVARS3= 2048 netCDF version 4.7.0 of Jan 20 2022 14:59:39 $ Missing environment variable EXECUTION_ID Value for GDNAM3D: 'marmara_4km' Value for GDNAM3D: 'marmara_4km' Value for RUN_EFS: T returning TRUE File "GRIDDESC" opened for input on unit: 99 /home/reza/APPS/MEGAN/MEGANv3.2/Input/MAP/GRIDDESC *** ERROR ABORT in subroutine CNVT_EFS Could not get grid description. ``` The process input files (_OutputGridEF.marmara\_4km.csv_ and _GRIDDESC_), _cnvt\_efs.F_, and _run.txt2ioapi.v32.csh_ files are attached to the following link: [https://drive.google.com/drive/folders/1gbKPkw0\_wvjV2KfmakXYOXKZzAXSlze2?usp=sharing](https://drive.google.com/drive/folders/1gbKPkw0_wvjV2KfmakXYOXKZzAXSlze2?usp=sharing) Thank you for any help in advance. Reza ---
**Author:** ![willison.jeff](https://avatars.discourse-cdn.com/v4/letter/w/c89c15/32.png) [@willison.jeff](https://forum.cmascenter.org/u/willison.jeff)\ **Post date:** [September 20, 2022, 12:46pm UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584/2 "2022-09-20T12:46:39Z")
Shouldn’t your GRIDDESC have: ’ ’ ‘LambertConformal’ 2 30.000 60.000 24.000 24.000 45.000 ’ ’ ‘marmara\_4km’ ‘LambertConformal’ 159999.312 -610361.625 4000.000 4000.000 94 79 1 ’ ’ since ``` Value for GDNAM3D: 'marmara_4km' ``` ---
**Author:** ![rrezaei83](https://avatars.discourse-cdn.com/v4/letter/r/53a042/32.png) [@rrezaei83](https://forum.cmascenter.org/u/rrezaei83)\ **Post date:** [September 20, 2022, 12:57pm UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584/3 "2022-09-20T12:57:13Z")
@willison.jeff Thank you for your response. In the _GRIDDESC_ file, the domain name is defined as **'4km** ’. Is this mean that I should change the GDNAM3D value to **‘4km’** , in the MEGAN? ---
**Author:** ![willison.jeff](https://avatars.discourse-cdn.com/v4/letter/w/c89c15/32.png) [@willison.jeff](https://forum.cmascenter.org/u/willison.jeff)\ **Post date:** [September 20, 2022, 1:20pm UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584/4 "2022-09-20T13:20:31Z")
You can change it in the GRIDDESC or in the .csh file. They just have to agree with each other. ---
**Author:** ![rrezaei83](https://avatars.discourse-cdn.com/v4/letter/r/53a042/32.png) [@rrezaei83](https://forum.cmascenter.org/u/rrezaei83)\ **Post date:** [September 20, 2022, 2:16pm UTC](https://forum.cmascenter.org/t/megan-txt2ioapi-execution-error-error-abort-in-subroutine-cnvt-efs/3584/5 "2022-09-20T14:16:13Z")
Thank you, the problem is solved.