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Error when using VCP Actions

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25 Jun 2018 13:16 #112845 by cgibbons
Error when using VCP Actions was created by cgibbons
Hi there,

I am running LinuxCNC 2.7 and Glade 3.8.6 on Raspbian Stretch.

I can get the HAL Python and VCP Actions to show up in my Glade Palette on the left when I run
glade-3
in the same terminal I am running LinuxCNC from.

However, when trying to create a new interface while following this tutorial , everything works fine until I add the VCP ToggleAction ESTOP. Then I get the following errors in my terminal and sometimes Glade just crashes and closes.
(glade-3:23977): Gtk-CRITICAL **: IA__gtk_notebook_insert_page: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:23977): Gtk-CRITICAL **: IA__gtk_notebook_set_tab_label: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:23977): GladeUI-GTK-CRITICAL **: Unbalanced children when inserting notebook children (pages: 0 tabs: 1 extra pages: 0 extra tabs 0)
Issuing ESTOP
Traceback (most recent call last):
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 99, in _f
    return f(self, *a, **kw)
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 209, in on_toggled
    self.linuxcnc.state(linuxcnc.STATE_ESTOP)
AttributeError: 'EMC_ToggleAction_ESTOP' object has no attribute 'linuxcnc'
Issuing ESTOP RESET
Traceback (most recent call last):
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 99, in _f
    return f(self, *a, **kw)
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 212, in on_toggled
    self.linuxcnc.state(linuxcnc.STATE_ESTOP_RESET)
AttributeError: 'EMC_ToggleAction_ESTOP' object has no attribute 'linuxcnc'
Issuing ESTOP
Traceback (most recent call last):
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 99, in _f
    return f(self, *a, **kw)
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 209, in on_toggled
    self.linuxcnc.state(linuxcnc.STATE_ESTOP)
AttributeError: 'EMC_ToggleAction_ESTOP' object has no attribute 'linuxcnc'
Issuing ESTOP RESET
Traceback (most recent call last):
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 99, in _f
    return f(self, *a, **kw)
  File "/home/pi/linuxcnc-2.7/lib/python/gladevcp/hal_actions.py", line 212, in on_toggled
    self.linuxcnc.state(linuxcnc.STATE_ESTOP_RESET)
AttributeError: 'EMC_ToggleAction_ESTOP' object has no attribute 'linuxcnc'

I have read many forum posts and google links trying to find the answer to this but have been unable to solve it. Any help would be greatly appreciated.

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25 Jun 2018 14:07 #112847 by andypugh
Replied by andypugh on topic Error when using VCP Actions
The offending line in the handler code is here:
github.com/LinuxCNC/linuxcnc/blob/master.../hal_actions.py#L205

The VCP on/off button has the same structure, does that work?

Is the output above from a running linuxCNC instance, or from an attempt to run the screen standalone?

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25 Jun 2018 14:25 #112849 by cgibbons
Replied by cgibbons on topic Error when using VCP Actions
I have looked at this line in the code before but it doesn't help me fix the error.

The VCP on/off button has the same structure, does that work?

I have tried those too but i get these error messages in my terminal:
(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_add: assertion 'GTK_IS_WIDGET (widget)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_add: assertion 'GTK_IS_WIDGET (widget)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

(glade-3:24712): Gtk-CRITICAL **: IA__gtk_container_child_set_property: assertion 'GTK_IS_WIDGET (child)' failed

The actions do not show up in my inspector on the right hand side of my screen in glade. Once I click on some other widget, I cannot find the action anywhere.

Is the output above from a running linuxCNC instance, or from an attempt to run the screen standalone?

These error messages are all in the terminal while I am running Glade.

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25 Jun 2018 15:05 #112851 by andypugh
Replied by andypugh on topic Error when using VCP Actions

These error messages are all in the terminal while I am running Glade.


There won't be a linuxcnc object for the GladeVCP to link to unless LinuxCNC is running.

You can probably ignore the e-stop warnings. It might be interesting to see if they go away if LinuxCNC is actually running at the time.

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25 Jun 2018 17:06 #112854 by cmorley
Replied by cmorley on topic Error when using VCP Actions
You can try right clicking the action and add as a top level.
In general you should save your work often - GLADE can be glitchy.

Chris M

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25 Jun 2018 17:50 #112856 by andypugh
Replied by andypugh on topic Error when using VCP Actions

You can try right clicking the action and add as a top level.
In general you should save your work often - GLADE can be glitchy.


I think that is an understatement. To the extent that once I have a panel set up I don't dare try editing it with Glade, I use a text editor :-)

I got the feeling that the newer version (which doesn't work with LunuxCNC) was more responsive and less glitchy.

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26 Jun 2018 09:25 #112870 by cgibbons
Replied by cgibbons on topic Error when using VCP Actions
Right clicking and adding it as a top level, makes it show up in my inspector on the right, whether I have linuxCNC running or not. Thank you cmorley.

I am going to have LinuxCNC running in the background from now on anyway, though LinuxCNC doesn't seem to be appearing as an object either way.

I am running glade/linuxcnc from different shell windows (as I wouldn't be able to run them both from the same window at the same time), that doesn't matter does it? As far as I know I can't run them both from the same shell window.

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26 Jun 2018 09:28 #112871 by andypugh
Replied by andypugh on topic Error when using VCP Actions
If you use "linuxcnc &" then linuxcnc will launch and return control to the shell.

bashitout.com/2013/05/18/Ampersands-on-the-command-line.html

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26 Jun 2018 10:09 #112873 by cgibbons
Replied by cgibbons on topic Error when using VCP Actions
Oh great, Thank you! I have been using the terminal an insane amount in the last two years, can't believe I never came across this.

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