How do I update the library?

My Arduino is loaded with library "ExampleAddon/HelloWorl". (a=Arduino) I am trying to load "ExampleAddon/HelloWo". (a=Arduino('COM6','Mega2560','Libraries','ExampleAddon/HelloWo')

The old version is (***HelloWorl) and the new version is (***HelloWo).

How do I refresh the library?

A log follows

>> addpath 'C:\Users\CL Plane Guy 3\Documents\MATLAB\Work' 
>> clear 
>> clear classes 
>> rehash toolboxcache 
>> lib = listArduinoLibraries() 
Warning: Class arduinoio.LibraryBase will be removed. Following Add-On classes need to be updated to work in future release : 
Arduino/MKRMotorCarrier. Follow steps mentioned in this Arduino Add-On document to update. Click here to turn off this warning. 
Warning: Class arduinoio.AddonBase will be removed. Inherit class arduinoioaddons.arduino.MKRRotaryEncoder from 
matlabshared.addon.LibraryBase instead. For more information, see Arduino Add-On document.Click here to turn off this warning. 

lib = 

10×1 cell array 

{'Adafruit/MotorShieldV2' } 
{'Arduino/MKRMotorCarrier'} 
{'ExampleAddon/HelloWo' } 
{'I2C' } 
{'MAMGyroFolder/Gyro' } 
{'RotaryEncoder' } 
{'SPI' } 
{'Servo' } 
{'ShiftRegister' } 
{'Ultrasonic' } 

>> lib 

lib = 

10×1 cell array 

{'Adafruit/MotorShieldV2' } 
{'Arduino/MKRMotorCarrier'} 
{'ExampleAddon/HelloWo' } 
{'I2C' } 
{'MAMGyroFolder/Gyro' } 
{'RotaryEncoder' } 
{'SPI' } 
{'Servo' } 
{'ShiftRegister' } 
{'Ultrasonic' } 

>> arduinoObj=arduino('COM6','Mega2560','Libraries','ExampleAddon/HelloWor') 
Expected libraries to match one of these values: 

'Adafruit/MotorShieldV2', 'Arduino/MKRMotorCarrier', 'ExampleAddon/HelloWo', 'I2C', 'MAMGyroFolder/Gyro', 'RotaryEncoder', 'SPI', 'Servo', 
'ShiftRegister', 'Ultrasonic' 

The input, 'ExampleAddon/HelloWor', did not match any of the valid values. 

>> arduinoObj=arduino('COM6','Mega2560','Libraries','ExampleAddon/HelloWo') 
Updating server code on board Mega2560 (COM6). This may take a few minutes. 
Cannot program board Mega2560 (COM6). Please make sure the board is supported and the port and board type are correct. For more information,
see Arduino Hardware Troubleshooting. 

>> arduinoObj=arduino 

arduinoObj = 

arduino with properties: 

Port: 'COM6' 
Board: 'Mega2560' 
AvailablePins: {'D2-D53', 'A0-A15'} 
AvailableDigitalPins: {'D2-D53', 'A0-A15'} 
AvailablePWMPins: {'D2-D13', 'D44-D46'} 
AvailableAnalogPins: {'A0-A15'} 
AvailableI2CBusIDs: [0] 
Libraries: {'ExampleAddon/HelloWorl'} 

>> lib 

lib = 

10×1 cell array 

{'Adafruit/MotorShieldV2' } 
{'Arduino/MKRMotorCarrier'} 
{'ExampleAddon/HelloWo' } 
{'I2C' } 
{'MAMGyroFolder/Gyro' } 
{'RotaryEncoder' } 
{'SPI' } 
{'Servo' } 
{'ShiftRegister' } 
{'Ultrasonic' } 

>> lib = listArduinoLibraries() 
Warning: Class arduinoio.LibraryBase will be removed. Following Add-On classes need to be updated to work in future release : 
Arduino/MKRMotorCarrier. Follow steps mentioned in this Arduino Add-On document to update. Click here to turn off this warning. 
Warning: Class arduinoio.AddonBase will be removed. Inherit class arduinoioaddons.arduino.MKRRotaryEncoder from 
matlabshared.addon.LibraryBase instead. For more information, see Arduino Add-On document.Click here to turn off this warning. 

lib = 

10×1 cell array 

{'Adafruit/MotorShieldV2' } 
{'Arduino/MKRMotorCarrier'} 
{'ExampleAddon/HelloWo' } 
{'I2C' } 
{'MAMGyroFolder/Gyro' } 
{'RotaryEncoder' } 
{'SPI' } 
{'Servo' } 
{'ShiftRegister' } 
{'Ultrasonic' }