If they are "minor" errors that don't impact on the bot crawling activity, they should not have any impact.
Have a look at a google official response :
I always prefer however to have a totally "clean" website...
here you can find a transcript of the video :
(I've found only this link...)
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.