Probleme while flashing Pro Micro

[BGM00000]

Please I need help when I Upload in the Pro Micro Leonardo it gives me an error, why ?

Sketch uses 24540 bytes (85%) of program storage space. Maximum is 28672 bytes.
Global variables use 1638 bytes (63%) of dynamic memory, leaving 922 bytes for local variables. Maximum is 2560 bytes.
Property 'upload.tool.serial' is undefined

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[ywaf]

Just flash with normal drivers, not the modified ones. should still work

[SoLongSidekick]

Just flash with normal drivers, not the modified ones. should still work

What does that mean? I didn't download any special drivers for the AVR install and the instructions don't tell you to?

[LittleBitSalty]

I made a pull request to fix this bug.

What does that mean? I didn't download any special drivers for the AVR install and the instructions don't tell you

The "normal drivers" ywaf mentioned are the regular boards included in the Arduino AVR Boards. Although they don't give the same configuration options, they still will work.