how to solve blog template edit error(simple way)

I discovered the reason for this on the Blogger Help Group after reading this post from Gatsby, a Blogger Employee:


Recently we changed the way our template editor accepts certain third party code, so that it is now less tolerant of certain templates. We did this because we had seen a lot of data corruption due to 'bad templates,' and we are trying to stave off some of these issues pre-emptively. 


Now we realize that this has caused some inconvenience to folks, so we are re-thinking our decision and will post an update on that shortly. 



Many Bloggers who have been unable to upload third party templates have received the following error codes:
bx-bliced
bX-ev85ll
bX-39cc9q
bX-y6cz0v 
bX-982020
There are several other codes too, though the issue appears to be the same for all.




This is the problem Then how to solve it 


There is a simple way to solve the problem.Nowadays all bloggers having new blogger 
interface which show this kind of errors if you want to change your template just 
change to your older blogger interface and edit template and change it.
It won t show error codes when you upload thirt party template.after the change was 
changed just return back to your new interface.





This is the most simple way to handle there are other methods too if this not works for 
you just comment below for other methods