ERROR : Not compiling for Arduino Nano 33 BLE Sense

Hi! 👋
When I try to compile the sketch using the Arduino IDE available from the latest Microsoft Store , then I get this error -
```
Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: "Arduino Nano 33 BLE"

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash\ble_sense_webdash.ino: In function 'void loop()':

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash\ble_sense_webdash.ino:146:44: warning: narrowing conversion of 'r' from 'int' to 'short unsigned int' inside { } [-Wnarrowing]

unsigned short colors[3] = { r, g, b };

^

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash\ble_sense_webdash.ino:146:44: warning: narrowing conversion of 'g' from 'int' to 'short unsigned int' inside { } [-Wnarrowing]

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash\ble_sense_webdash.ino:146:44: warning: narrowing conversion of 'b' from 'int' to 'short unsigned int' inside { } [-Wnarrowing]

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash\ble_sense_webdash.ino:194:13: warning: unused variable 'micLevel' [-Wunused-variable]

short micLevel;

^~~~~~~~

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\libraries\Wire\Wire.cpp: In member function 'void arduino::MbedI2C::receiveThd()':

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\libraries\Wire\Wire.cpp:142:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

if (c <= sizeof(buf)) {

~~^~~~~~~~~~

In file included from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\variants\ARDUINO_NANO33BLE/pins_arduino.h:3:0,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/Arduino.h:90,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\libraries\PDM\src/PDM.h:22,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\libraries\PDM\src\nrf52\PDM.cpp:23:

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\libraries\PDM\src\nrf52\PDM.cpp: In member function 'int PDMClass::begin(int, long int)':

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/macros.h:28:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

#define digitalPinToPinName(P) (P >= PINS_COUNT ? NC : g_APinDescription[P].name)

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/macros.h:28:40: note: in definition of macro 'digitalPinToPinName'

#define digitalPinToPinName(P) (P >= PINS_COUNT ? NC : g_APinDescription[P].name)

^~

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/macros.h:28:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

#define digitalPinToPinName(P) (P >= PINS_COUNT ? NC : g_APinDescription[P].name)

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/macros.h:28:40: note: in definition of macro 'digitalPinToPinName'

#define digitalPinToPinName(P) (P >= PINS_COUNT ? NC : g_APinDescription[P].name)

^~

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCI.cpp: In member function 'int HCIClass::sendAclPkt(uint16_t, uint8_t, uint8_t, void*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCI.cpp:430:41: warning: variable length array 'txBuffer' is used [-Wvla]

uint8_t txBuffer[sizeof(aclHdr) + plen];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::handleNotify(uint16_t, const uint8_t*, int)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:522:39: warning: variable length array 'notification' is used [-Wvla]

uint8_t notification[_peers[i].mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::handleInd(uint16_t, const uint8_t*, int)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:552:37: warning: variable length array 'indication' is used [-Wvla]

uint8_t indication[_peers[i].mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCI.cpp: In member function 'int HCIClass::sendCommand(uint16_t, uint8_t, void*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCI.cpp:472:41: warning: variable length array 'txBuffer' is used [-Wvla]

uint8_t txBuffer[sizeof(pktHdr) + plen];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::findInfoReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:675:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::findByTypeReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:766:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::readByGroupReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:816:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::readOrReadBlobReq(uint16_t, uint16_t, uint8_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:918:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::readByTypeReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1023:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::writeReqOrCmd(uint16_t, uint16_t, uint8_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1223:25: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::prepWriteReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1309:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'void ATTClass::execWriteReq(uint16_t, uint16_t, uint8_t, uint8_t*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1342:23: warning: variable length array 'response' is used [-Wvla]

uint8_t response[mtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::exchangeMtu(uint16_t)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1424:33: warning: variable length array 'responseBuffer' is used [-Wvla]

uint8_t responseBuffer[_maxMtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::discoverServices(uint16_t, BLERemoteDevice*, const char*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1438:33: warning: variable length array 'responseBuffer' is used [-Wvla]

uint8_t responseBuffer[_maxMtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::discoverCharacteristics(uint16_t, BLERemoteDevice*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1494:33: warning: variable length array 'responseBuffer' is used [-Wvla]

uint8_t responseBuffer[_maxMtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp: In member function 'bool ATTClass::discoverDescriptors(uint16_t, BLERemoteDevice*)':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\ATT.cpp:1551:33: warning: variable length array 'responseBuffer' is used [-Wvla]

uint8_t responseBuffer[_maxMtu];

^

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp: In function 'void bleLoop()':

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:116:68: warning: 'us_timestamp_t mbed::TimerBase::read_high_resolution_us() const' is deprecated: Use the Chrono-based elapsed_time method. If integer microseconds are needed, you can use `elapsed_time().count()` [since mbed-os-6.0.0] [-Wdeprecated-declarations]

last_update_us += (uint64_t) timer.read_high_resolution_us();

^

In file included from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/mbed.h:81:0,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed.h:14,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/features/FEATURE_BLE/targets/TARGET_CORDIO/driver/CordioHCIDriver.h:26,

from C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:23:

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/drivers/Timer.h:104:20: note: declared here

us_timestamp_t read_high_resolution_us() const;

^~~~~~~~~~~~~~~~~~~~~~~

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:138:72: warning: 'us_timestamp_t mbed::TimerBase::read_high_resolution_us() const' is deprecated: Use the Chrono-based elapsed_time method. If integer microseconds are needed, you can use `elapsed_time().count()` [since mbed-os-6.0.0] [-Wdeprecated-declarations]

uint64_t time_spent = (uint64_t) timer.read_high_resolution_us();

^

In file included from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/mbed.h:81:0,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed.h:14,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/features/FEATURE_BLE/targets/TARGET_CORDIO/driver/CordioHCIDriver.h:26,

from C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:23:

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/drivers/Timer.h:104:20: note: declared here

us_timestamp_t read_high_resolution_us() const;

^~~~~~~~~~~~~~~~~~~~~~~

C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:149:55: warning: 'void rtos::ThisThread::sleep_for(uint32_t)' is deprecated: Pass a chrono duration, not an integer millisecond count. For example use `5s` rather than `5000`. [since mbed-os-6.0.0] [-Wdeprecated-declarations]

rtos::ThisThread::sleep_for(wait_time_ms);

^

In file included from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/rtos/rtos.h:30:0,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/USB/PluggableUSBSerial.h:24,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/Arduino.h:131,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed.h:4,

from C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/features/FEATURE_BLE/targets/TARGET_CORDIO/driver/CordioHCIDriver.h:26,

from C:\Users\ARIJIT DAS\Documents\Arduino\libraries\ArduinoBLE\src\utility\HCICordioTransport.cpp:23:

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino/mbed/rtos/ThisThread.h:216:6: note: declared here

void sleep_for(uint32_t millisec);

^~~~~~~~~

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino\USB\USBCDC.cpp: In member function 'virtual const uint8_t* arduino::USBCDC::configuration_desc(uint8_t)':

C:\Users\ARIJIT DAS\Documents\ArduinoData\packages\arduino\hardware\mbed\1.3.0\cores\arduino\USB\USBCDC.cpp:544:35: warning: narrowing conversion of '((((arduino::USBCDC*)this)->arduino::USBCDC::extraDescriptor != 0) ? 5 : 0)' from 'int' to 'uint8_t {aka unsigned char}' inside { } [-Wnarrowing]

(extraDescriptor != NULL) ? 0x5 : 0x0, // iInterface

~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

sketch\ble_sense_webdash.ino.cpp.o: In function `loop':

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash/ble_sense_webdash.ino:200: undefined reference to `arm_rfft_init_q15'

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash/ble_sense_webdash.ino:201: undefined reference to `arm_rfft_q15'

C:\Users\ARIJIT DAS\Documents\Arduino\ble_sense_webdash/ble_sense_webdash.ino:202: undefined reference to `arm_abs_q15'

collect2.exe: error: ld returned 1 exit status

exit status 1

Error compiling for board Arduino Nano 33 BLE.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
```

Can anyone help ?

Reproduce the build for ble_sense_webdash.ino with Arduino IDE 1.8.13, the Arduino Nano 33 BLE board, and ArduinoBLE. Inspect the complete compiler output beyond the warnings shown, starting at lines 146 and 194 and the referenced ArduinoBLE files. Done means identifying the actual compilation error and confirming the sketch builds successfully or documenting the missing reproduction details.

Written by the indexing model from the issue text.