What is the problem?
I just upgraded to 1.5.0 and lost the control to "select tool". On the Control tab under Tool there used to be a "select tool" dropdown menu. It is necessary to select the tool before sending extrusion commands for priming the extruder either via the extrude buttons on the same tab or via a gcode command such as G1 E100 F5000. Attempting to prime the extruder without selecting the tool puts my machines into an error state which causes the board to reboot.
What did you already try to solve it?
I have a work-around to accomplish this via the Duet mainboard but would like this functionality restored to Octoprint.
Have you tried running in safe mode and if so did it solve the issue?
serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)
Send: G1 E5 F300
Recv: Error: Attempting to extrude with no tool selected.
Changing monitoring state from "Operational" to "Error: Attempting to extrude with no tool selected."
Send: N3 M11234
Send: N4 M104 T0 S037
Send: N5 M140 S0*96
Changing monitoring state from "Error: Attempting to extrude with no tool selected." to "Offline (Error: Attempting to extrude with no tool selected.)"
Connection closed, closing down monitor
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
Octoprint 1.5.0 , RepRap firmware for Duet 2