How can i create backgrounds in Valve hammer editor

This alredy happened to me!
Because a pixel what i couldn't saw i don't compiled the level, but
when i saw the level was compiled
but i HAVE A MOST IMPORTANT PROBLEM!
It have nothing outside world:
hlcsg v2.5.3 rel Custom Build 1.7 (Dec 9 2002)
Zoner's Half-Life Compilation Tools -- Custom Build
Based on code modifications by Sean 'Zoner' Cavanaugh
Based on Valve's version, modified with permission.
Submit detailed bug reports to (merlinis@bigpond.net.au)
----- BEGIN hlcsg -----
Command line: hlcsg -nowadtextures Center_of_world
Entering Center_of_world.map

Current hlcsg Settings
Name | Setting | Default
---------------------|-----------|-------------------------
threads [ 2 ] [ Varies ]
verbose [ off ] [ off ]
log [ on ] [ on ]
developer [ 0 ] [ 0 ]
chart [ off ] [ off ]
estimate [ off ] [ off ]
max texture memory [ 4194304 ] [ 4194304 ]
priority [ Normal ] [ Normal ]

noclip [ off ] [ off ]
null texture stripping[ on ] [ on ]
clipnode economy mode [ on ] [ on ]
onlyents [ off ] [ off ]
wadtextures [ off ] [ on ]
skyclip [ on ] [ on ]
hullfile [ None ] [ None ]
min surface area [ 0.500 ] [ 0.500 ]
brush union threshold [ 0.000 ] [ 0.000 ]

Using mapfile wad configuration
Wadinclude list :
[zhlt.wad]

0 brushes (totalling 0 sides) discarded from clipping hulls
CreateBrush:
Error: Entity 0, Brush 0, Side 1: plane with no normal
Error: Entity 0, Brush 1, Side 1: plane with no normal
Error: plane with no normal
Description: The map has a problem which must be fixed
Howto Fix: Check the file ZHLTProblems.html for a detailed explanation of this problem

Error: Entity 0, Brush 1, Side 2: plane with no normal
Error: Entity 0, Brush 0, Side 2: plane with no normal
Error: Entity 0, Brush 1, Side 2: has a coplanar plane at (3008, 3584, -1024), texture 256WHITE
Error: Entity 0, Brush 0, Side 2: has a coplanar plane at (3008, -3520, -1023), texture 256WHITE
Error: Entity 0, BErrursohr :0 ,E nStiidtey 30:, pBlraunseh w1i,t hS indoe n3o:r mpalla
n
e with no normal
Error: Entity 0, Brush 0, Side 3: has a coplanar plane at (3008, 3584, -1023), texture 256WHITE
Error: Entity 0, Brush 1, Side 3: has a coplanar plane at (-3584, 3584, -1024), texture 256WHITE
Error: Entity 0, Brush 1, Side 3: has a coplanar plane at (-3584, 3584, -1024), texture 256WHITE
Error: Entity 0, Brush 0, Side 3: has a coplanar plane at (3008, 3584, -1023), texture 256WHITE
Error: Entity 0, Brush 1, Side 4: plane with no normal
Error: Entity 0, Brush 0, Side 4: plane with no normal
Error: Entity 0, Brush 1, Side 4: has a coplanar plane at (3008, -3520, -1024), texture 256WHITE
Error: Entity 0, Brush 0, Side 4: has a coplanar plane at (-3584, -3520, -1023), texture 256WHITE
Error: Entity 0, Brush 0, Side 4: has a coplanar plane at (-3584, -3520, -1023), texture 256WHITE
Error: Entity 0, Brush 1, Side 4: has a coplanar plane at (3008, -3520, -1024), texture 256WHITE
Error: Entity 0, Brush 1, Side 4: has a coplanar plane at (3008, -3520, -1024), texture 256WHITE
Error: Entity 0, Brush 0, Side 4: has a coplanar plane at (-3584, -3520, -1023), texture 256WHITE
Error: Entity 0, Brush 1, Side 5: has a coplanar plane at (-3584, -3520, -1024), texture 256WHITE
Error: Entity 0, Brush 0, Side 5: has a coplanar plane at (-3584, 3584, -1023), texture 256WHITE
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-1023)-(10000,10000,-1023)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1024)-(10000,10000,-1024)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-1023)-(10000,10000,-1023)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-987)-(10000,10000,-987)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1024)-(10000,10000,-1024)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-987)-(10000,10000,-987)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1060)-(10000,10000,-1060)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-991)-(10000,10000,-991)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1060)-(10000,10000,-1060)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-991)-(10000,10000,-991)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1056)-(10000,10000,-1056)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-1005)-(10000,10000,-1005)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1056)-(10000,10000,-1056)
Error: Entity 0, Brush 0: outside world(+/-4096): (-10000,-10000,-1005)-(10000,10000,-1005)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1042)-(10000,10000,-1042)
Error: Entity 0, Brush 1: outside world(+/-4096): (-10000,-10000,-1042)-(10000,10000,-1042)
(0.09 seconds)

----- END hlcsg -----



hlbsp v2.5.3 rel Custom Build 1.7 (Dec 9 2002)
Zoner's Half-Life Compilation Tools -- Custom Build
Based on code modifications by Sean 'Zoner' Cavanaugh
Based on Valve's version, modified with permission.
Submit detailed bug reports to (merlinis@bigpond.net.au)
----- BEGIN hlbsp -----
Command line: hlbsp Center_of_world
>> There was a problem compiling the map.
>> Check the file Center_of_world.log for the cause.

----- END hlbsp -----



hlvis v2.5.3 rel Custom Build 1.7 (Dec 9 2002)
Zoner's Half-Life Compilation Tools -- Custom Build
Based on code modifications by Sean 'Zoner' Cavanaugh
Based on Valve's version, modified with permission.
Submit detailed bug reports to (merlinis@bigpond.net.au)
----- BEGIN hlvis -----
Command line: hlvis Center_of_world
>> There was a problem compiling the map.
>> Check the file Center_of_world.log for the cause.

----- END hlvis -----



hlrad v2.5.3 rel Custom Build 1.7 (Dec 9 2002)
Zoner's Half-Life Compilation Tools -- Custom Build
Based on code modifications by Sean 'Zoner' Cavanaugh
Based on Valve's version, modified with permission.
Submit detailed bug reports to (merlinis@bigpond.net.au)
----- BEGIN hlrad -----
Command line: hlrad Center_of_world
>> There was a problem compiling the map.
>> Check the file Center_of_world.log for the cause.

----- END hlrad -----
how can i fix that?