LinuxCNC 2.8.1 configuration doesn't run after upgrading from 2.7.15

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17 Feb 2021 19:41 #199173 by gaston48
Hello

I have a 2.7.15 configuration with Mesa and concerning a Mikron milling retrofit. It works wellI
I try an update to 2.8.1, but my application does not start ?
A simple step / dir configuration test starts well
My setup has a lot of personal components. They installed correctly, except for a userspace component:
halcompile ignore the singleton statement?

Thank you for your advice

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17 Feb 2021 20:28 #199176 by chris@cnc
In your debug Information
Error constructing led({'halpin': 'b3ar-led', 'on_color': 'green', 'off_color': 'black', 'size': 10}):
Cannot allocate memory
Seems you should update Python or some in this area to

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17 Feb 2021 21:26 #199183 by gaston48
Thank you for your answer
I didn't do any development in Python.
the error points to a pin in my file
mikron_postguy.hal
I have a trivial configuration
with mikron.xml and mikron_postgui.hal

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17 Feb 2021 23:05 #199197 by tommylight
Most probably something wrong with constructing the 'pyvcp.b3ar-led' in the xml, dimensions might be off or have a character instead of a number.
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18 Feb 2021 01:10 #199214 by joekline9
2.8 has a bug when it comes to userspace singleton comps.
I had to remove the 'singleton yes' line from the userspace comp file. Then add .0 after each reference to pins etc. in my hal files.
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18 Feb 2021 08:42 #199225 by gaston48
thank you,
I think my Pyvcp syntax is good, it works fine on 2.7.15.

under 2.8.1, if I modify my config options a little, the error points to other pins


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18 Feb 2021 08:47 #199227 by gaston48
Thank you,
yes there is a bug, I had to do the same
the other solution is to preprocess file.comp to file.c with halcompile from 2.7
and then install file.c with halcompile fron 2.8.1
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18 Feb 2021 19:54 #199340 by gaston48
Obviously 2.8.1 under axis limits the size of the xml file linked to PyVCP ?
the syntax of my xml is good it is big and has 3 tabs

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19 Feb 2021 09:24 #199384 by andypugh

2.8 has a bug when it comes to userspace singleton comps.


This seems to be a bug in 2.7 too:

github.com/LinuxCNC/linuxcnc/issues/245

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19 Feb 2021 09:30 #199385 by andypugh

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