Cura not starting.

Citfta

I just recently discovered Solus. After installing it on an old HP laptop with an i5 processor I was pleasantly surprised at how well it ran. I also got a nice surprise when I found that both Cura and FreeCad were in the software store. And both were the latest versions.

I installed both of them and FreeCad starts and runs fine. However when I click on Cura in the menu the icon for Cura appears in the task bar for about 5 seconds or so and then disappears. And Cura never starts after that even if I wait a couple of minutes. I tried removing Cura and the Cura engine and reinstalling them but that didn't help. Since I downloaded Cura from the Solus software store I was surprised it didn't run. I use both Cura and FreeCad for 3D printing so I need Cura to work if I am going to continue to use Solus. Does anyone have any idea what I can do to get it to work?

And one other rather annoying problem is that I keep having to putting my WiFi password in each time the machine wakes up or is restarted. I checked the box for the WiFi to auto-connect but it keeps asking for the password each time. I've never had that problem with any other distro. Can that be fixed?

Thanks for any help anyone can give.

alfisya

What DE are you using?
Have you tried launching cura from terminal? What does it say (paste it here) ?
If you really need cura now, you can use flatpak flatpak install flathub com.ultimaker.cura or appimage.

Citfta

Here's what I get when trying from terminal:

carrollb@carroll-solus ~ $ cura
/usr/lib/python3.11/site-packages/scipy/__init__.py:132: UserWarning: A NumPy version >=1.21.6 and <1.28.0 is required for this version of SciPy (detected version 2.2.1)
  warnings.warn(f"A NumPy version >={np_minversion} and <{np_maxversion}"
Traceback (most recent call last):
  File "/usr/bin/cura", line 28, in <module>
    from cura.CrashHandler import CrashHandler
  File "/usr/lib/python3.11/site-packages/cura/CrashHandler.py", line 27, in <module>
    from UM.Application import Application
  File "/usr/lib/python3.11/site-packages/UM/Application.py", line 10, in <module>
    from UM.Controller import Controller
  File "/usr/lib/python3.11/site-packages/UM/Controller.py", line 3, in <module>
    from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
  File "/usr/lib/python3.11/site-packages/UM/Scene/Iterator/DepthFirstIterator.py", line 3, in <module>
    from UM.Scene.SceneNode import SceneNode
  File "/usr/lib/python3.11/site-packages/UM/Scene/SceneNode.py", line 14, in <module>
    from UM.Mesh.MeshBuilder import MeshBuilder
  File "/usr/lib/python3.11/site-packages/UM/Mesh/MeshBuilder.py", line 4, in <module>
    from UM.Mesh.MeshData import MeshData
  File "/usr/lib/python3.11/site-packages/UM/Mesh/MeshData.py", line 16, in <module>
    import scipy.spatial
  File "/usr/lib/python3.11/site-packages/scipy/spatial/__init__.py", line 110, in <module>
    from ._kdtree import *
  File "/usr/lib/python3.11/site-packages/scipy/spatial/_kdtree.py", line 4, in <module>
    from ._ckdtree import cKDTree, cKDTreeNode
  File "_ckdtree.pyx", line 1, in init scipy.spatial._ckdtree
ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

I'm not sure what all that means but it appears I am missing something in Python. Is that correct?

And thank you very much for your quick reply.

alfisya

Citfta I'm not sure what all that means but it appears I am missing something in Python. Is that correct?

I am not sure actually. It has warnings about our numpy version is too new and at the end saying "binary incompatibilty", we may need to rebuild the package again.

Either way, we need to try reproduce your issue first, would you mind filing a bug report here ?

Also just a note, I agree with @AlphaElwedritsch that flatpak will be easier to manage. The flatpak (for Cura) technically is only a repackaging of the official appimage. So, it should be as good.

Citfta

Forgot to add that I am using KDE.

Citfta

Thanks again for your help. I downloaded the appimage from the link you gave me. When I clicked on the appimage file and told it to execute, Cura started just fine and appears to be working normally. Please pardon my ignorance but how do I add an appimage program to my menu so I don't have to go back to the download folder each time I want to start the program?

AlphaElwedritsch

I would recommend to use the flatpak image, not the appimage

1) you have a start menu entry and notice virtually no difference to a native solus package
2) flatpaks are supported in discover.
3) IMO flatpaks are better integrated into the system than appimages

banger

Right click on Start Button > edit applications and add it that way. Fairly straight forward.

Citfta

Thanks banger! That worked.

Citfta

Filed the report. I hope I did that right. I haven't done that before.

Thanks to everyone for their help.

Using the help from banger I was able to add the appimage to my regular menu. So I learned somethiing useful from this experience.