The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds.

'Heading.Title' hides inherited member 'ContentBase.Title'. Use the new keyword if hiding was intended.

'Heading.Subtitle' hides inherited member 'ContentBase.Subtitle'. Use the new keyword if hiding was intended.

'CustomAccordion.Title' hides inherited member 'CsContentItem.Title'. Use the new keyword if hiding was intended.

'CustomAttachment.Title' hides inherited member 'CsContentItem.Title'. Use the new keyword if hiding was intended.

'CustomCard.Title' hides inherited member 'CsContentItem.Title'. Use the new keyword if hiding was intended.

'EmbeddedAsset.Title' hides inherited member 'CsContentItem.Title'. Use the new keyword if hiding was intended.

'Target.Title' hides inherited member 'ContentBase.Title'. Use the new keyword if hiding was intended.

Cannot convert null literal to non-nullable reference type.