Error compiling for board Arduino Uno

[ymorayko]

Describe the bug
Cannot flush Arduino Uno R3 with arduino_serialCOM_v0.1.ino.

To Reproduce
Steps to reproduce the behavior:
Clicking "Upload" produces "Error compiling for board Arduino Uno" with multiple errors.

Expected behavior
Flush the board without errors.

Software versions (please complete the following information):

• OS: Windows
• Python version 3.8
• ArduinoIDE_1.8.57.0_x86

Additional context
Typical error:

arduino_serialCOM_v0.1 ORIGINAL.ino:96:37: error: redefinition of 'AccelStepper stepper1'

AccelStepper stepper1(AccelStepper::DRIVER, X_STP, X_DIR);

                                 ^~~~~~