Derived table shows conversion error

Does anyone faced an issue when you create a derived table and get the following error:
#X# Conversion failed: failed to parse YAML. Check for pipes on Newlines

I will appreciate any help here

@ngivol-16759276 It seems due to column description for struct columns in BQ and it is a know issue, Checkout this discussion for workaround

https://www.googlecloudcommunity.com/gc/Modeling/Conversion-fail-when-generating-LookML-view-from-table/m-p/569922