arduino nano

I have just tried to send a very basic program to my nano and it does not work. Last week I installed the Blink sketch and it stioo works. The new program wont overwrite it. Why? It comes up with "problem uploading to board". What do I need to do?
I am completely new to programming but have a good knowledge of electronics.

You've recently upgraded your IDE?

(deleted)

Are we having a bad day?
It's probably the compatibility issue with the IDE since 1.8.5 and the old bootloader on the Nano, but I'll leave it with you as it's 0145 where I am and time for some rest.

(deleted)

boss_at_bssl:
What do I need to do?

Read through the sticky post How to use this forum - please read.
How1.png

Post the entire error message inside of code tags.

Post your entire sketch also. (also using code tags)

Please do this:

  • File > Preferences > Show verbose output during: > compilation (uncheck) > upload (check) > OK
  • Sketch > Upload
  • After the upload fails you'll see a button on the right side of the orange bar "Copy error messages". Click that button.
  • Paste the error messages in a reply here USING CODE TAGS (</> button on the toolbar).