Failed to locate mstp_server on OpenWRT system

[deve87]

It looks like it trieds to locate /var/tmp/ma_3qfwg67n/mstp_server but eider could not be found or the bc app. can't create it.

root@RUTX08:~# bc --ini ./bc.ini Initialized the socket mac_address = 25 max master = 127 baud rate = 38400 max info frames = 1 RS485: Initializing /dev/ttyUSB0=success! MS/TP MAC: 19 MS/TP Max_Master: 7F MS/TP Max_Info_Frames: 1 mstp_path=ttyUSB0 Traceback (most recent call last): File "/usr/bin/bc", line 577, in <module> main() File "/usr/bin/bc", line 557, in main this_application = WhoIsIAmApplication( File "/usr/bin/bc", line 57, in __init__ MSTPSimpleApplication.__init__(self, *args) File "/usr/lib/python3.9/site-packages/misty/mstplib/__init__.py", line 537, in __init__ self.mux = MSTPMultiplexer(self.localDevice, self.localAddress) File "/usr/lib/python3.9/site-packages/misty/mstplib/__init__.py", line 434, in __init__ self.directPort = MSTPDirector(self.localDevice, self.address) File "/usr/lib/python3.9/site-packages/misty/mstplib/__init__.py", line 255, in __init__ self.socket.connect(self.server_address) FileNotFoundError: [Errno 2] No such file or directory Cleaned up MSTP temp directory