Run-time error F29

[Gemma Kite]

Hi all,

I created a model from an existing model using save as.  The new model is in the same folder saved with a different name.  The existing model had no problem running modflow and importing results. I did not make any changes to the new model but when I went to run modflow, I received this error message: run-time error F29: OPEN(Unit11) - FOR INPUT.

Does anyone have a clue why I am receiving this error message and how I can solve it? I want to use this new model to change a few parameters but want to keep my existing model for a baseline.

Thanks,

Gemma

[Jeff Norville]

Hi Gemma,

Which interface are you using?

I'll hazard à guess that after saving-as with your GUI you didn't close the first model, so you're getting à file handle error of some type.

From software.Intel.com:
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info (11): Unit not connected

FOR$IOS_UNINOTCON. The specified unit was not open at the time of the attempted I/O operation. Check if correct unit number was specified. If appropriate, use an OPEN statement to explicitly open the file (connect the file to the unit number

---
Regards,
Jeff

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[Emre Onay]

I think you hdd is full thats why you are getting this error

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M. Emre ONAY

[Richard B. Winston]

This problem sounds like it is related to the particular graphical user
interface you are using. Which one is it?

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[Gemma Kite]

I'm using Groundwater Vistas. The original file closes after I do a save as.

[Simon Woodward]

A Groundwater Vistas project is stored in a gwv file, which is used to create all the files for the MODFLOW run. You can have more than one gwv file in a directory, but generally it is best to have Vistas put all the MODFLOW input and output files in a unique directory for that project. You set up the directories in the Model|Paths to models dialogue box.

 

Setting up a MODFLOW model is pretty fiddly, you have to specify the read/write units for all the input and output files. This is done in the Model|Modflow|Packages dialog and other similar dialog for later versions of Modflow. I am guessing there is a problem with the settings in one of these. You cannot use the same Unit number for two files, for instance. You can set Vistas to automatically assign the unit numbers. Unit 11 seems to be set to the MODFLOW2000 LPF package by default.

 

 

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[Geofunkita]

Hello,

Does anyone could solve that error?. I'm running a MT3D with a concentration BC. When I save the file and import the .ucn file as an Initial concentration I received the same error (Unit 26). I'm running MT3D with GW Vistas.

Thanks 

[rockgalSD]

I'm getting a similar error when trying to run MT3D.

run-time error F29: Open(unit 26) - for input

Any recommendations on settings to check?

[pia avalos]

Hi,

You need to re-run modflow because it is not recognising the time step.

Cheers

Sent from my iPad

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[Francisca Clemo Garcia]

Hi, 

did you find out how to solve this?

I'm having the same problem

Cheers

[Rodrigo Valdés]

The run-time error F29: Open(unit 26) for input suggests an issue with opening a file (unit 26) for input in a Fortran program. Check if the file exists, permissions are set correctly, and the unit number is valid.

Sent from my iPhone