See my reply on this thread Re: RT demon is not running.
rtapi_app_main(rtapi): -22 Invalid argument ???
for how to install an earlier package
I would go back to machinekit_0.1.1532446277.git5d86a7e-1~stretch_armhf.deb
and machinekit-rt-preempt_0.1.1532446277.git5d86a7e-1~stretch_armhf.deb
to be sure
I think I know what it is, but won't have tome to fix until tomorrow
On 14/09/18 15:41, Tac Huynh wrote:
Please help:
How do I fix this installation error?
Thanks,
Tac.
I tried to install Machinekit on Raspberry Pi 3, Raspian
Stretch, got following errors:
sudo apt-get install machinekit-rt-preempt
....
Setting up xdot (0.7-2) ...
Setting up machinekit-rt-preempt (0.1.1536747208.git041712d-1~stretch) ...
ln: failed to create symbolic link '/usr/lib/linuxcnc/rt-preempt/pru_generic.bin': No such file or directory
ln: failed to create symbolic link '/usr/lib/linuxcnc/rt-preempt/pru_generic.dbg': No such file or directory
ln: failed to create symbolic link '/usr/lib/linuxcnc/rt-preempt/pru_decamux.bin': No such file or directory
ln: failed to create symbolic link '/usr/lib/linuxcnc/rt-preempt/pru_decamux.dbg': No such file or directory
dpkg: error processing package machinekit-rt-preempt (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of machinekit:
machinekit depends on machinekit-rt-threads; however:
Package machinekit-rt-threads is not installed.
Package machinekit-rt-preempt which provides machinekit-rt-threads is not configured yet.
dpkg: error processing package machinekit (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.24-11+deb9u3) ...
Processing triggers for systemd (232-25+deb9u2) ...
Errors were encountered while processing:
machinekit-rt-preempt
machinekit
E: Sub-process /usr/bin/dpkg returned an error code (1)
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