Php warnings after update to 1.1.0-beta5

@attilatilman → Thanks for reporting the issue. Hopefully, we will be close enough to release the first RC version of 1.1.x branch within weeks. After that, our key focus will be ironing out all these and similar issues of the upgrade path from 1.0.x versions. Therefore leaving this issue in Active status until then.

I’m experiencing this same issue. I’d just like to know if it’s something I need to worry about or if I can ignore it while it’s being resolved. Thanks.

@attilatilman, @ricardo garcía, could you please let me know from which version you upgraded to Acquia DAM 1.1.0-beta5?
Thank you!