error: failed to open image file about espsflashtool HOT 5 CLOSED

I rebooted and tried again, this time I get a different error. Do I need to put the ESP into a programming mode?

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It depends on the type of platform you have. If the platform has a built in USB serial interface then it most likely has support for the MCU programming sequence. If you device does not have the built in USB interface then you will need to manually put the device into the programming mode.

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I'm using a D1mini which is supposed to have USB support and I can't find anything about putting it in programming mode.

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I rebooted and tried again, this time I get a different error. Do I need to put the ESP into a programming mode?

For some reason, it's not finding the required tools. This is likely due to how it was extracted / path issues. The upload.py script will append the path directories required based upon where it is launched from.
The directory structure should look similar to the following:

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Ok... I tried a 2nd laptop and it worked without any problems.... No idea why it failed on my first one but I'm sorted now...

Thanks

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