C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:14:1: error: 'USBCDC' does not name a type
 USBCDC USBSerial;
 ^~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:17:1: error: 'USBMSC' does not name a type
 USBMSC MSC;
 ^~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:155:41: error: 'esp_event_base_t' has not been declared
 static void usbEventCallback(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data){
                                         ^~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:155:41: error: 'esp_event_base_t' has not been declared
 static void usbEventCallback(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data){
                                         ^~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino: In function 'void usbEventCallback(void*, int, int32_t, void*)':
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:156:20: error: 'ARDUINO_USB_EVENTS' was not declared in this scope
   if(event_base == ARDUINO_USB_EVENTS){
                    ^~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:156:20: note: suggested alternative: 'ARDUINO_ISR_ATTR'
   if(event_base == ARDUINO_USB_EVENTS){
                    ^~~~~~~~~~~~~~~~~~
                    ARDUINO_ISR_ATTR
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:157:5: error: 'arduino_usb_event_data_t' was not declared in this scope
     arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
     ^~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:157:32: error: 'data' was not declared in this scope
     arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
                                ^~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:157:32: note: suggested alternative: 'atan'
     arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
                                ^~~~
                                atan
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:157:65: error: expected primary-expression before ')' token
     arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
                                                                 ^
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:159:12: error: 'ARDUINO_USB_STARTED_EVENT' was not declared in this scope
       case ARDUINO_USB_STARTED_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:159:12: note: suggested alternative: 'ARDUINO_USB_CDC_ON_BOOT'
       case ARDUINO_USB_STARTED_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
            ARDUINO_USB_CDC_ON_BOOT
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:162:12: error: 'ARDUINO_USB_STOPPED_EVENT' was not declared in this scope
       case ARDUINO_USB_STOPPED_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:162:12: note: suggested alternative: 'ARDUINO_USB_CDC_ON_BOOT'
       case ARDUINO_USB_STOPPED_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
            ARDUINO_USB_CDC_ON_BOOT
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:165:12: error: 'ARDUINO_USB_SUSPEND_EVENT' was not declared in this scope
       case ARDUINO_USB_SUSPEND_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:165:12: note: suggested alternative: 'ARDUINO_USB_CDC_ON_BOOT'
       case ARDUINO_USB_SUSPEND_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~~
            ARDUINO_USB_CDC_ON_BOOT
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:168:12: error: 'ARDUINO_USB_RESUME_EVENT' was not declared in this scope
       case ARDUINO_USB_RESUME_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:168:12: note: suggested alternative: 'ARDUINO_USB_CDC_ON_BOOT'
       case ARDUINO_USB_RESUME_EVENT:
            ^~~~~~~~~~~~~~~~~~~~~~~~
            ARDUINO_USB_CDC_ON_BOOT
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino: In function 'void setup()':
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:182:3: error: 'USB' was not declared in this scope
   USB.onEvent(usbEventCallback);
   ^~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:183:3: error: 'MSC' was not declared in this scope
   MSC.vendorID("ESP32");//max 8 chars
   ^~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:191:3: error: 'USBSerial' was not declared in this scope
   USBSerial.begin();
   ^~~~~~~~~
C:\Users\sothiag\AppData\Local\Temp\.arduinoIDE-unsaved202316-12136-9ele7n.ygel5\USBMSC\USBMSC.ino:191:3: note: suggested alternative: 'Serial'
   USBSerial.begin();
   ^~~~~~~~~
   Serial

exit status 1

Compilation error: 'USBCDC' does not name a type