You did not answer the above question
Don't you know if you're using Windows or Linux or Mac or ... ?
OK, assuming that this is indeed an upload error, please enable verbose output during upload and disable verbose output during compilation in file/preferences in the IDE. Perform an upload and post the complete output here using code tags (see https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966#use-code-tags).
PS
I did forget to ask: which version of the IDE you are using?