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Copy file name to clipboardExpand all lines: content/Software Support/Upload/Errors-when-uploading-a-sketch.md
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@@ -3,8 +3,6 @@ title: "Errors when uploading a sketch"
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id: 4403365313810
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> **Incident:****[Touch reset fails for UNO R4 WiFi on Windows (Arduino CLI 0.33.0 or earlier)](https://support.arduino.cc/hc/en-us/articles/9398559565340)**
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When there is an error the IDE will print relevant information in the console. Learn how to resolve common errors.
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<li><ahref="#no-device-found-on-port">No device found on <port></a></li>
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<li><ahref="#no-board-on-selected-port">Couldn't find a Board on the selected port</a></li>
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<li><ahref="#no-dfu-capable-USB-device-available">dfu-util: No DFU capable USB device available</a></li>
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<li><ahref="#SerialPortException-port-busy">jssc.SerialPortException: Port name - <port>;<br>Method name - openPort(); Exception type - Port busy.</a></li>
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</ul>
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<h3>Compilation error</h3>
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</ul>
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</td>
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<td>
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<h3>dfu-util</h3>
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<ul>
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<li><ahref="https://support.arduino.cc/hc/en-us/articles/11011849739804-dfu-util-errors-when-uploading-exit-status-74-#exit-status-74">Failed uploading: uploading error: exit status 74</a></li>
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<li><ahref="https://support.arduino.cc/hc/en-us/articles/11011849739804-dfu-util-errors-when-uploading-exit-status-74-#no-dfu-capable-usb-device-available">dfu-util: No DFU capable USB device available</a></li>
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<li><ahref="https://support.arduino.cc/hc/en-us/articles/11011849739804-dfu-util-errors-when-uploading-exit-status-74-#libusb-error-access">dfu-util: Cannot open DFU device {vid}:{pid} found on devnum {n} (LIBUSB_ERROR_ACCESS)</a></li>
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<li><ahref="https://support.arduino.cc/hc/en-us/articles/11011849739804-dfu-util-errors-when-uploading-exit-status-74-#more-than-one-dfu-capable-usb-device">dfu-util: More than one DFU capable USB device found!</a></li>
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> On Windows, you can [manually set a port for the board](https://support.arduino.cc/hc/en-us/articles/360016420140#set-COM-port) to stop it from being reassigned.
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<aid="no-dfu-capable-USB-device-available"></a>
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### dfu-util: No DFU capable USB device available<br>Upload error: Failed uploading: uploading error: exit status 74
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```
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dfu-util: No DFU capable USB device available
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Upload error: Failed uploading: uploading error: exit status 74
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```
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This error can happen if the IDE could not find the selected board on the port, or if a port is not selected.
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1. Make sure the board is connected to your computer.
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2. Make sure that the right board is selected in _Tools > Board_.
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3. Select the board in _Tools > Port_.
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* For step-by-step instructions, see [Select board and port in Arduino IDE](https://support.arduino.cc/hc/en-us/articles/4406856349970-Select-board-and-port-in-Arduino-IDE).
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* If you can't find the port, see [If your board does not appear in the port menu](https://support.arduino.cc/hc/en-us/articles/4412955149586-If-your-board-does-not-appear-in-the-port-menu).
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4. Make sure the correct port is selected in _Tools > Port_.
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5. Close other instances of Arduino IDE, serial monitors, and other software that may be blocking the port.
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6. Restart your computer.
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7. See [Find and stop process blocking a port](https://support.arduino.cc/hc/en-us/articles/4407830972050-Find-and-stop-process-blocking-a-port).
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> On Windows, you can [manually set a port for the board](https://support.arduino.cc/hc/en-us/articles/360016420140#set-COM-port) to stop it from being reassigned.
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<aid="SerialPortException-port-busy"></a>
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### jssc.SerialPortException: Port name - \<port\>; Method name - openPort(); Exception type - Port busy
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