Connection error in schematic Arduino + Driver (pololu)

Help me please, I don’t know what do I have to do to solve thar problems.

Place a not-connected flag (the blue “x” in the right toolbar) on each pin.

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The wires don’t seem to be connected to the pins. The little circle at the end of the pin goes away when the wire actually joins it.

That’s true of the latest version, but he is not using the latest version.

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The 4988?, I’m not sure how to tell the version

Kicad version, it’s easy to tell by the icons.

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Don’t forget you have “Arduino Template” for this !