Error Opening... -_-

when i Press Run Map i get this…

materialPath: C:\Program Files (x86)\Steam\steamapps\deadoralive100\garrysmod\garrysmod\materials
Loading C:\Program Files (x86)\Steam\steamapps\deadoralive100\garrysmod\garrysmod\maps\city_gf_salvaged.vmf
Error: displacement found on a(n) func_detail entity - not supported (entity 11, brush 0)

4 threads
reading c:\program files (x86)\steam\steamapps\deadoralive100\garrysmod\garrysmod\maps\city_gf_salvaged.bsp
Error opening c:\program files (x86)\steam\steamapps\deadoralive100\garrysmod\garrysmod\maps\city_gf_salvaged.bsp

[Reading texlights from ‘lights.rad’]
[45 texlights parsed from ‘lights.rad’]

Loading c:\program files (x86)\steam\steamapps\deadoralive100\garrysmod\garrysmod\maps\city_gf_salvaged.bsp
Error opening c:\program files (x86)\steam\steamapps\deadoralive100\garrysmod\garrysmod\maps\city_gf_salvaged.bsp

any help? :c

You have an entity tied to a displacement. Displacements cannot be entities, they must be world brushes.