Google for "mac usb.core.NoBackendError: No backend available" and check out the top hits there....
On Sunday, November 20, 2022 at 10:28:12 AM UTC-8 fredric...@gmail.com wrote: > > - Fresh install of Weewx running on a Mac mini (M1, 2020) running Big > Sur (11.6.4), for an acurite weather station 06037 > - Homebrew 3.6.7 (Homebrew/homebrew-core (git revision 3768ae96c6f; > last commit 2022-10-31)) > - Followed the directions from http://weewx.com/docs/macos.htm for > installation. > - When running ./bin/weewxd weewx.conf, i get the following: > > *datalore@Server-IV weewx % sudo python3 ./bin/weewxd weewx.conf* > > *Password:* > > *Traceback (most recent call last):* > > * File "/Users/Shared/weewx/./bin/weewxd", line 249, in <module>* > > * main()* > > * File "/Users/Shared/weewx/./bin/weewxd", line 154, in main* > > * engine.run()* > > * File "/Users/Shared/weewx/bin/weewx/engine.py", line 208, in run* > > * for packet in self.console.genLoopPackets():* > > * File "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 466, in > genLoopPackets* > > * with Station() as station:* > > * File "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 587, in > __enter__* > > * self.open()* > > * File "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 594, in > open* > > * dev = self._find_dev(self.vendor_id, self.product_id, self.device_id)* > > * File "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 927, in > _find_dev* > > * for bus in usb.busses():* > > * File "/opt/homebrew/lib/python3.10/site-packages/usb/legacy.py", line > 355, in busses* > > * sorted(core.find(find_all=True), key=lambda d: d.bus),* > > * File "/opt/homebrew/lib/python3.10/site-packages/usb/core.py", line > 1309, in find* > > * raise NoBackendError('No backend available')* > > *usb.core.NoBackendError: No backend available* > > *datalore@Server-IV weewx %* > > > - Tail of the log: > > *weewx[34753] INFO __main__: Starting up weewx version 4.9.1* > > *weewx[34753] DEBUG weewx.engine: Station does not support reading the > time* > > *weewx[34753] INFO weewx.engine: Using binding 'wx_binding' to database > 'weewx.sdb'* > > *weewx[34753] INFO weewx.manager: Starting backfill of daily summaries* > > *weewx[34753] INFO weewx.manager: Empty database* > > *weewx[34753] INFO weewx.engine: Starting main packet loop.* > > *weewx[34753] INFO weewx.engine: Main loop exiting. Shutting engine down.* > > *weewx[34753] DEBUG weewx.restx: Shut down StationRegistry thread.* > > *weewx[34753] CRITICAL __main__: Caught unrecoverable exception:* > > *weewx[34753] CRITICAL __main__: **** No backend available* > > *weewx[34753] CRITICAL __main__: **** Traceback (most recent call > last):* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/./bin/weewxd", line 154, in main* > > > *weewx[34753] CRITICAL __main__: **** engine.run()* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/bin/weewx/engine.py", line 208, in run* > > > *weewx[34753] CRITICAL __main__: **** for packet in > self.console.genLoopPackets():* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 466, in > genLoopPackets* > > > *weewx[34753] CRITICAL __main__: **** with Station() as station:* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 587, in __enter__* > > > *weewx[34753] CRITICAL __main__: **** self.open()* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 594, in open* > > > *weewx[34753] CRITICAL __main__: **** dev = > self._find_dev(self.vendor_id, self.product_id, self.device_id)* > > > *weewx[34753] CRITICAL __main__: **** File > "/Users/Shared/weewx/bin/weewx/drivers/acurite.py", line 927, in _find_dev* > > > *weewx[34753] CRITICAL __main__: **** for bus in usb.busses():* > > > *weewx[34753] CRITICAL __main__: **** File > "/opt/homebrew/lib/python3.10/site-packages/usb/legacy.py", line 355, in > busses* > > > *weewx[34753] CRITICAL __main__: **** > sorted(core.find(find_all=True), key=lambda d: d.bus),* > > > *weewx[34753] CRITICAL __main__: **** File > "/opt/homebrew/lib/python3.10/site-packages/usb/core.py", line 1309, in > find* > > > *weewx[34753] CRITICAL __main__: **** raise NoBackendError('No > backend available')* > > > *weewx[34753] CRITICAL __main__: **** usb.core.NoBackendError: No > backend available* > > *weewx[34753] CRITICAL __main__: **** Exiting.* > > > Any suggestions on next steps? Thank you! > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/0934a2ba-94fb-4059-8b71-55a5dd06b055n%40googlegroups.com.
