I am also facing the same issue. I tried many things but nothing works.
@anantmohit, we don't know what you tried. So please provide those details so we don't advise the same things that you already tried.
Which version of the IDE are you using?
Which operating system are you using?
I suggest that you post the full error (as text) using code tags (described in https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966#use-code-tags).
PS:
It's not clever (no offence intended) to add to a post that is already solved; people will ignore it.
As @aashishchauhan006 mentioned the problem of the error. I were also using same version. Faced same error of Lto-wrapper failed, even in simple code and prefixed examples. I delete all temp files, reinstall the Arduino IDE, tried to install and reinstall avr board. I tried avr board version 1.8.6, 1.8.5 but nothing works. So I just install a previous version 1.6.21 and its work.
Topic split from another topic. Please do not add your own questions to the end of other people's topics.
Could you take a few moments to Learn How To Use The Forum
It will help you get the best out of the forum in the future.
Thank you.
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