A value expected by the decoder was not present in the archive. Raised by NSKeyedUnarchiver when a required key is missing, often due to a schema change between the archiving and unarchiving code versions.
coderValueNotFound
swift A value expected by the decoder was not present in the archive. Raised by NSKeyedUnarchiver when a required key is missing, often due to a schema change between the archiving and unarchiving code versions.