i can' upload to my arduino mega pro mini

Development Tools Uploading
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it shows the following error :
stk500v2_ReceiveMessage(): timeout

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Remove any connections to pins 0 and 1 on your Arduino board. These pins are used for communication with your computer, including uploads. Connecting anything to these pins can interfere with uploads.

Make sure you have the correct board selected from the Tools > Board menu. I'm not knowledgeable about the "mega pro mini" so I don't know which board selection is the one, but there might be some information on the site you bought it from. If not, you can post the link to where you bought it here and we'll take a look

Make sure you have selected the port of your Arduino board from the Tools > Port menu.

Sometimes the port will be labeled with the board name in the menu. Other times it will not. If you don’t know which port is your Arduino board, you can find it like this:

  • Unplug your Arduino board from the computer.
  • Tools > Port
  • Note the ports, if any, listed in the menu.
  • Close the Tools menu. The ports list is only updated when the Tools menu is re-opened, so this step is essential.
  • Plug your Arduino board into the computer.
  • Tools > Port - The new port listed in the menu is your Arduino board.
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