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I am having problems uploading my program. I have been using the verify button aka the "checkmark" to upload my programs. I assumed that this was the correct button but now I am having problems uploading. When I attempt to use the "upload" button I get the error "can not open device". What am I doing wrong? How can I fix this error code?

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migrated from stackoverflow.com Mar 12 at 11:20

This question came from our site for professional and enthusiast programmers.
    
install the device drivers for your Arduino! steps to follow are mention in arduino website! –  Dinal24 Mar 12 at 6:48
1  
It's possible the port or the board got changed, check the tools menu. –  Tyson Mar 12 at 14:28
    
Check Tools->Board, Tools->Port, and Tools->Programmer –  Gerben Mar 12 at 16:41
    
The "problem uploading to board" error message includes this link to arduino.cc troubleshooting guide: arduino.cc/en/Guide/Troubleshooting –  MarkU May 12 at 8:11

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The checkmark button is used to compile your program (which "verifies" your code), but does not upload it to the board. The "arrow" button is used to compile and upload your program.

If you cannot connect to the device, make sure the correct COM port is selected on the Tools->Ports menu, and make sure you have the correct board selected on Tools->Board (usually an Arduino UNO).

If you have not installed the drivers yet, you will not have a port present for your Arduino. If that is the case, here is a great tutorial that will help you get everything installed and set up correctly: https://learn.adafruit.com/lesson-0-getting-started

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