Troubleshooting
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Hello,
Im trying to upload a sketch to my arduino nano. But I have this error:
avrdude: ser_open(): can't set com-state for "\.\COM9"Does somebody know what that means?
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Are you sure you have the correct comport selected? If so and you are on a Windows machine, check the com port in the device manager to make sure it is set up properly, e.g. now yellow exclamation point (
). If you have the yellow exclamation in device manager, you will need to resolve that issue first, which will most likely be a driver issue.
