I think Pope Blessed Pius IX's Syllabus of Errors is as applicable today as it was in 1862. Francis is full of it with his "god of surprises".
Regarding Amoris Laetitia, I think Pius IX’ listed errors #65 through #68, display the heresy of the former.
65. The doctrine that Christ has raised marriage to the dignity of a sacrament cannot be at all tolerated. — Apostolic Letter “Ad Apostolicae,” Aug. 22, 1851.
66. The Sacrament of Marriage is only a something accessory to the contract and separate from it, and the sacrament itself consists in the nuptial benediction alone. — Ibid.
67. By the law of nature, the marriage tie is not indissoluble, and in many cases divorce properly so called may be decreed by the civil authority. — Ibid.; Allocution “Acerbissimum,” Sept. 27, 1852.
68. The Church has not the power of establishing diriment impediments of marriage, but such a power belongs to the civil authority by which existing impediments are to be removed. — Damnatio “Multiplices inter,” June 10, 1851.
Wow . . . what trailer park was this redneck born in? The Vatican's going to have to scrub its web site before someone gets the wrong idea![/sarcasm]