I tried to print a file I uploaded to Octoprint and I got the error below.
Communication Error
There was a communication error while talking to your printer. Please consult the terminal output and OctoPrint.log for details.
Error: Printer keeps requesting line 17 again and again, communication stud.
octoprint.log
2020-02-13 09:15:00,885 - octoprint.filemanager.analysis - INFO - Starting analysis of local:PETG/Left_Arm_PET0.2mm.gcode
2020-02-13 09:15:01,937 - octoprint.filemanager.analysis - INFO - Analysis of entry local:PETG/Left_Arm_PET0.2mm.gcode finished, needed 1.05s
2020-02-13 09:15:08,612 - octoprint.printer.standard.job - INFO - Print job selected - origin: local, path: PETG/Left_Arm_PET0.2mm.gcode, owner: jansenchua, user: jansenchua
2020-02-13 09:15:08,646 - octoprint.util.comm - INFO - Changing monitoring state from "Operational" to "Starting"
2020-02-13 09:15:08,658 - octoprint.printer.standard.job - INFO - Print job started - origin: local, path: PETG/Left_Arm_PET0.2mm.gcode, owner: jansenchua, user: jansenchua
2020-02-13 09:15:08,670 - octoprint.util.comm - INFO - Changing monitoring state from "Starting" to "Printing"
2020-02-13 09:15:08,686 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-02-13 09:15:08,746 - octoprint.plugins.excluderegion - INFO - File selected, resetting internal state
2020-02-13 09:15:08,852 - octoprint.plugins.excluderegion - INFO - Printing started
2020-02-13 09:15:09,343 - octoprint.util.comm - INFO - Got a resend request from the printer: requested line = 17, current line = 19
| Last lines in terminal:
| Send: N10 M205 X10 Y10 Z0.3 E5.0*13
| Recv: ok N:10
| Send: N11 M205 S0 T0*19
| Recv: ok N:11
| Send: N12 M117 Heating...*65
| Recv: ok N:12
| Send: N13 M300 S2500 P100*39
| Recv: ok N:13
| Send: N14 M104 S220*80
| Recv: ok N:14
| Send: N15 M140 S85*108
| Recv: ok N:15
| Send: N16 G1 Z20*103
| Recv: ok N:16
| Send: N17 G28 X Y*36
| Recv: //sd cmd error cnt:0 len:15 :N17 G28 X Y*36
| Recv:
| Recv: ok
| Send: N18 M84*38
| Recv: Resend:17
2020-02-13 09:15:09,347 - octoprint.util.comm - INFO - Firmware didn't send an 'ok' with their resend request. That's a known bug with some firmware variants out there. Simulating an ok to continue...
2020-02-13 09:15:09,363 - octoprint.util.comm - INFO - Got a resend request from the printer: requested line = 17, current line = 19
| Last lines in terminal:
| Recv: ok N:14
| Send: N15 M140 S85*108
| Recv: ok N:15
| Send: N16 G1 Z20*103
| Recv: ok N:16
| Send: N17 G28 X Y*36
| Recv: //sd cmd error cnt:0 len:15 :N17 G28 X Y*36
| Recv:
| Recv: ok
| Send: N18 M84*38
| Recv: Resend:17
| Recv: //last:16 curr:18 rcv:N18 M84*38
| Send: N17 G28 X Y*36
| Recv:
| Recv: //callback_pf error
| Recv: //sd cmd error cnt:1 len:15 :N17 G28 X Y*36
| Recv:
| Recv: ok
| Send: N18 M84*38
| Recv: Resend:17
I am using Tronxy D01 Printer with the latest Octopi.
I can control my printer to move as well as heat the extruder and bed with Octopi without a problem.
Appreciate if anyone can help me. I am very new to OctoPrint