Contradiction with Joshua 15:9
It defines the boundary of Judah which contrasts with the northern boundary description of Asher in Joshua 19:26.
Joshua 15:9: And the border was drawn from the top of the hill unto the fountain of the water of Nephtoah, and went out to the cities of mount Ephron; and the border was drawn to Baalah, which [is] Kirjathjearim:
Contradiction with Joshua 16:1-4
It lists the territory assigned to Ephraim and Manasseh, differing from Asher's allocation described in Joshua 19:26.
Joshua 16:1-4: And the lot of the children of Joseph fell from Jordan by Jericho, unto the water of Jericho on the east, to the wilderness that goeth up from Jericho throughout mount Bethel, [fell: Heb. went forth]
Contradiction with Joshua 17:14
The complaint of Joseph's descendants about their boundary contrasts with Asher's clearly defined boundary in Joshua 19:26.
Joshua 17:14: And the children of Joseph spake unto Joshua, saying, Why hast thou given me [but] one lot and one portion to inherit, seeing I [am] a great people, forasmuch as the LORD hath blessed me hitherto?
Contradiction with Joshua 18:11
The description of Benjamin's inheritance contradicts with the description of Asher's borders in Joshua 19:26.
Joshua 18:11: And the lot of the tribe of the children of Benjamin came up according to their families: and the coast of their lot came forth between the children of Judah and the children of Joseph.
Contradiction with Numbers 34:6
It contradicts with Joshua 19:26 as it provides a general western boundary for the land, differing from Asher's specific boundary.
Numbers 34:6: And [as for] the western border, ye shall even have the great sea for a border: this shall be your west border.