Installation error

[Michael Andeweg]

Hello all,

I recently bought a new laptop and I want to install Cantera on it, but it doesn't work out yet. At my old laptop I had Python 3.4.0. with NumPy 1.8.2. (64-bit) and Cantera 2.1.2, which worked great. If I install the same (or newer) version on my new laptop and try to run something, I get a long error code like the one described here. Can anybody help me out?

Regards, 

Michael

Procedure: ct2ctml

Error:   Error converting input file "C:/Program Files/Cantera/data/gri30.cti" to

CTML.

Python command was: 'C:\Python34\python.exe'

The exit code was: 7

-------------- start of converter log --------------

Traceback (most recent call last):

  File "<stdin>", line 5, in <module>

  File "C:\Python34\lib\site-packages\cantera\__init__.py", line 1, in <module>

    from ._cantera import *

  File "__init__.pxd", line 155, in init cantera._cantera

  (cantera/_cantera.cpp:69835)

ImportError: No module named 'numpy'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "<stdin>", line 7, in <module>

ImportError: No module named 'ctml_writer'

--------------- end of converter log ---------------

Error in XML_Node (line 11)

    x.id = ctmethods(10,15,0,src); % newxml(name)

Error in Solution (line 30)

doc = XML_Node('doc',src);

Error in IdealGasMix (line 39)

            s = Solution(a);

[Ray Speth]

Michael,

Based on the line:

    ImportError: No module named 'numpy'

it looks like you don't have NumPy installed. You can download the NumPy installer from http://www.lfd.uci.edu/~gohlke/pythonlibs/

Regards,

Ray

[Michael Andeweg]

Hey Ray,

The Python3.4 compatible NumPy from the link is not working, so I installed it from another source, I got the blue screen which usually should appear and numpy was located in the folder of Python after running the installer. SO it should be fine I guess. I also installed Cantera, according to the standard procedure at http://cantera.github.io/docs/sphinx/html/install.html 
I get another error code when I try to run a file I have created at my other laptop and I also get the error when I just try to implement air with gas=importPhase('air.cti')

Procedure: ct2ctml

Error:   Error converting input file "C:/Program Files/Cantera/data/gri30.cti" to

CTML.

Python command was: 'C:\Python34\python.exe'

The exit code was: 7

-------------- start of converter log --------------

Traceback (most recent call last):

  File "<stdin>", line 5, in <module>

ImportError: No module named 'cantera'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "<stdin>", line 7, in <module>

ImportError: No module named 'ctml_writer'

--------------- end of converter log ---------------

Error in XML_Node (line 11)

    x.id = ctmethods(10,15,0,src); % newxml(name)

Error in Solution (line 30)

doc = XML_Node('doc',src);

Error in importPhase (line 5)

    s = Solution(file);

Error in LNGphi (line 1)

g1=importPhase('gri30.cti')

[Ray Speth]

Michael,

I'm not sure what's going on here. It seems that initially, it was clearly finding the cantera Python module (given the appearance of 'C:\Python34\lib\site-packages\cantera\__init__.py' in the traceback. However, now the error just says it can't find the cantera module. Can you confirm that the directory C:\Python34\lib\site-packages\cantera exists and contains the expected files? If you just open up the Python 3.4 interpreter, are you able to successfully run 'import cantera'?

Regards,

Ray

[Michael Andeweg]

Ray,

There is indeed no directory named Cantera, which I find strange since I am following the exact procedure as described. I did this before at my other laptop and then it worked.

Gr. Michael

[Michael Andeweg]

I copied to proper directory to the location and it works now. You were again of great help Ray, I appreciate it! 

Gr. Michael