Since this evening, when I launch houdini I get this error :
Then, when I try to launch Solaris I get this one :
The Karma node in solaris send me errors to, and I can't add a material into usd. The USD workflow seems completly broken, and I have no idea how to fix it. Already try to reinstall houdini but with no success.
Is `D:\SideFX` the directory where you have installed Houdini? Did you change anything in your environment? Did you install a new version of Houdini? Did you install or remove any third party Houdini plugins? Have you tried renaming your $HOME/houdini19.0 directory (in case there is a bad prefrence or environment setting saved in your home directory)?
I ended up by delete everything and reinstalling windows , and, what a surprise, it works. I think what I did wrong is I have installed a python lib for usd, i think it was usdView or something like that, and it seems to have mess up some usefull python lib for houdini, but can't be sure of that. Anyway it was the opportunity to do a big clean, so I guess not so much wasted time..
For anyone running into this issue in the future. I ran into a very similar issue if not the same. kentins follow up gave me a clue about what might be causing it.
I have Python 3.7 installed on my windows system and it's included in the windows PATH environment variable as follows "%PATH%;C:\Program Files\Python37;C:\Program Files\Python37\Scripts". This normally doesn't cause any issues for houdini but for some reason when I have pip installed the usd-core package I can't use solaris inside houdini anymore. Doing a normal pip uninstall fixes the issue. I'm not sure what workaround to use to be able to have the useful package installed and houdini working as intended at the same time.