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Serial monitor won't open after "Error opening serial port 'COM12'. (Port not found)" under latest hourly build #3268

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per1234 opened this issue Jun 1, 2015 · 5 comments
Closed

Serial monitor won't open after "Error opening serial port 'COM12'. (Port not found)" under latest hourly build #3268

per1234 opened this issue Jun 1, 2015 · 5 comments
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Component: IDE Serial monitor Tools > Serial Monitor Component: IDE The Arduino IDE Type: Bug
Milestone
Release 1.6.5

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@per1234
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per1234 commented Jun 1, 2015

Under Windows 7 64 bit using Arduino IDE hourly build 2015/06/01 09:34:
Once I get the Error opening serial port 'COM12'. (Port not found) error the serial monitor won't open any port until the IDE is restarted. This happens with any com port number. I don't have this problem under 1.6.4. It is a bit difficult to get the error message. I can get it sometimes by:

  • Plug in the board to USB
  • Select a different port from the one the board is on
  • Select the port the board is on
  • Unplug the board from USB
  • Try to open the serial monitor. Console shows Error opening serial port 'COM12'. (Port not found). If that error doesn't show then restart the IDE and repeat the process.
  • Plug the board back in to USB
  • Verify the port shows in the ports menu
  • Open serial monitor. Nothing happens. The same will happen for boards on a different port.

It may take a few tries to get the error message. I do not have this problem after the more common Board at COM12 is not available error.
@ffissore
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ffissore commented Jun 1, 2015

Related to #3255. Fix under way

@ffissore ffissore added this to the Release 1.6.5 milestone Jun 1, 2015
@ffissore ffissore self-assigned this Jun 1, 2015
ffissore pushed a commit that referenced this issue Jun 1, 2015
SerialMonitor suspend/resume: dealing with boards that change serial …
e55d414 
…port

between uploads. Fixes #3255
Fixed a missing status management, leading IDE to believe Serial Monitor
was opened while it was not. See #3268
@ffissore
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ffissore commented Jun 1, 2015

Should be fixed in latest hourly build http://www.arduino.cc/en/Main/Software#hourly Can you give it a try?

@ffissore ffissore added the Waiting for feedback More information must be provided before we can proceed label Jun 1, 2015
@per1234
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per1234 commented Jun 1, 2015

Hourly Build 2015/06/01 12:19, still same problem.
This has happened for me with FTDI connected to Pro Mini, Mega2560, and Pro Micro so it may be different from #3255 which sounds like it is related to Due/Leonardo.

@ffissore ffissore removed the Waiting for feedback More information must be provided before we can proceed label Jun 1, 2015
@per1234
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per1234 commented Jun 1, 2015

I can still upload sketches after I get the error and serial monitor won't open so the serial port is still working, just not the serial monitor.

@smeezekitty
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I'm still experiencing this bug in 1.8.2

@per1234 per1234 added the Component: IDE Serial monitor Tools > Serial Monitor label Apr 7, 2021
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Component: IDE Serial monitor Tools > Serial Monitor Component: IDE The Arduino IDE Type: Bug
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