Failed uploading: uploading error: exit status 2

Using Arduino Avrdude, stk500, Bootloader issues
1

I've been trying to complete a project on the ESP32 WROOM but I keep getting this error.

Sketch uses 260617 bytes (19%) of program storage space. Maximum is 1310720 bytes.
Global variables use 21344 bytes (6%) of dynamic memory, leaving 306336 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.5.1
Serial port COM3
Connecting.........
Chip is ESP32-D0WDQ6 (revision v1.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: ac:67:b2:35:b7:20
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
WARNING: Failed to communicate with the flash chip, read/write operations will fail. Try checking the chip connections or removing any other hardware connected to IOs.
Configuring flash size...
Flash will be erased from 0x00001000 to 0x00005fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x0004ffff...
Compressed 18992 bytes to 13110...

A fatal error occurred: Packet content transfer stopped (received 8 bytes)
Failed uploading: uploading error: exit status 2

I've tried uploading a similar program but the error still persists. Here's the simpler code I've been trying to upload:

void setup() {
  Serial.begin(115200);
  delay(200);

}

void loop() {
  Serial.println("hihi");
  delay(1000);
  
}

I'm pretty sure there's nothing wrong with my data cable or my computer (worked on an Uno and Mega at the same time). Let me know if you have any fixes or idea what's going on.

2

I moved your topic to an appropriate forum category @pengu102.

In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

3

Hi @pengu102. This error might be caused by the communication lines between the computer and the microcontroller on the board not being able to support the rather high default upload speed. If so, the problem should be fixed by reducing the upload speed, which is configurable via a convenient menu.

Select Tools > Upload Speed > 115200 from the Arduino IDE menus and then try uploading the sketch again, just as you did before. Hopefully this time the upload will be successful. If not, add a reply here on the forum thread to let us know and we'll investigate further.

Optimizing Upload Speed

If the sketch upload no longer failed after reducing the upload speed, you will have determined that the board is not capable of managing uploads at the default 921600 baud, but is capable of them at 115200 baud.

Especially with more complex sketches, the upload will take a significant amount of time at 115200 baud. It is likely that the board is capable of managing uploads at some speed higher than 115200 baud, so it is worth doing some experimentation to determine the maximum speed at which you can reliably upload to the board. You can do this by repeating the "Configure Upload Speed" procedure above, but selecting different speeds each time. Then attempting an upload to see if the new speed is appropriate.

4

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