CanteraError

[Amonios Abdelmassih]

Hello everyone, 

I have the version 3.0.0 of Cantera but I have this error (attached) when I run a code with a cti file :

CanteraError thrown by newSolution : 

The CTI and XML formats are no longer supported.

My question is : how do you convert a cti file to an yaml file ? I tried to use the cti2yaml function but I don't understand how it works.

Another question : how can you downgrade a cantera version (from 3.0.0 to 2.6.0 for example) ?

Thank you in advance, 

Amonios

[Ray Speth]

Hi,

Did you find the documentation for cti2yaml on the Cantera website (https://cantera.org/tutorials/legacy2yaml.html)? What happened when you tried to run it? If there was an error, what was it?

Regards,

Ray

p.s. Please don't post screenshots of text. Copy and paste the actual text into your message so the contents are searchable and accessible to users who may be using assistive devices.

[Amonios Abdelmassih]

Hi, 

Sorry for the screenshots. The problem is solved ! I just realized that it doesn't work because I used the function cti2yaml directly in the script, but I did this in the anaconda prompt and it worked ! Thank you for your help,

Regards, 

Amonios 

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[AsadAli Kalyan]

Hello Cantera users,

I'm new to Cantera, so perhaps I'm making a rooky mistake.  I'm attempting to convert a .cti file to a .yaml using the cti2yaml converter utility. 

I used the following code, based on the documentation on the Cantera website:

cti2yaml [CERFACS_2step_propane.cti] [CERFACS_2step_propane.yaml]

And, got the following error:
--------------------------------------------------------------------------- NameError Traceback (most recent call last) <ipython-input-18-46387767fd5b> in <cell line: 1>() ----> 1 cti2yaml [CERFACS_2step_propane.cti] [CERFACS_2step_propane.yaml] NameError: name 'cti2yaml' is not defined

I also attempted the following variation:

python -m cti2yaml [CERFACS_2step_propane.cti] [CERFACS_2step_propane.yaml]

And got the following error:
File "<ipython-input-19-fbb4d1d64eb3>", line 1 python -m cti2yaml [CERFACS_2step_propane.cti] [CERFACS_2step_propane.yaml] ^ SyntaxError: invalid syntax

For additional context, I'm running using Colab, and installed Cantera using pip.

Thanking you in advance for your help. 

-Asad

[Andrius Ambrutis]

In cmd in path:

python -m cantera.cti2yaml Mevel2017.cti

Result:
Wrote YAML mechanism file to 'Mevel2017.yaml'.
Mechanism contains 14 species and 1 reactions.
Validating mechanism...
PASSED
This is how I wrote for hydrogen mechanism.

[AsadAli Kalyan]

Thank you.  Here's the script that worked in jupyter  notebooks:

! cti2yaml CERFACS_2step_propane.cti

Results:
Wrote YAML mechanism file to 'CERFACS_2step_propane.yaml'. Mechanism contains 6 species and 1 reactions. Validating mechanism... PASSED
The cti2yaml file must also be in the same directory as the input files.

[Ingmar Schoegl]

Happy to hear that you were able to convert the mechanism.

Regarding the comment that "The cti2yaml file must also be in the same directory as the input files." this isn't true. As long as you have Cantera properly installed in your environment (in case you use a virtual environment, it needs to be activated as well), the converter scripts should work in any location.

-is-