i'm in trouble, i can't find my fault wiht 10500errors help me

[Altera_Forum]

-----------------------------------------------------------------------lcd-----------------------------------------------------

library ieee;

use ieee.std_logic_1164.all;

use ieee.std_logic_unsigned.all;

entity lcd is 

generic( 

delay_cnt : integer :=31); --delay_cnt=50, 50us X 31 = 1.55ms

port (

clk, clk1, clk2,clk3,clk4: in std_logic; 

key : in std_logic_vector(3 downto 0); 

sw : in std_logic_vector(1 downto 0); 

rw,en,rs,v0 : out std_logic;

data_out : out std_logic_vector (7 downto 0);

segin1,segin2,segin3,segin4 : out std_logic_vector (3 downto 0);

LEDRin1,LEDRin2,LEDRin3 : out std_logic_vector (4 downto 0);

LEDRin4 : out std_logic_vector (1 downto 0));

end lcd;

architecture be of lcd is

subtype WORD is std_logic_vector(7 downto 0); -- Use 8bit to write down the word what i want to type

type DDRAM is array(0 to 15) of WORD; --DDRAM[0] ~ DDRAM[15]

signal Line0, Line1 : DDRAM; --Line1,2[0] ~ Line1,2[15] because Line0 and Line1 is DDRAM type

type STATE is (Wait_V0, Init, Line_0, Set_Add, Line_1, Wait_Vi, Go_Home); --kinds of STATE

signal ST : STATE:= Wait_V0; --ST become State Type, Initial value is Wait_V0

signal MUX_wire, clk_out, stop_sig : std_logic; --Role of enable, stop_sig is not used

signal init_count : integer range 0 to 127 := 0; -- Initial value is '0'. Range: 0 to 127

type GameST is (welcome,betting,betting_check,game,once_button,ea ch_button,error1,error2,error3,error4,error5,error 6,win,lose,each1,each2,each3);

signal GameSTATE:GameST:=welcome;

signal seg_input1,seg_input2,seg_input3,seg_input4:STd_lo gic_vector(3 downto 0):="0000";

signal LEDR_input1,LEDR_input2,LEDR_input3:std_logic_vect or(4 downto 0):="00000";

signal LEDR_input4:std_logic_vector(1 downto 0):="00";

begin 

Game_staterocess(clk1,key,sw,GameSTATE)

begin

if rising_edge(clk1) then

case GameSTATE is 

when welcome =>

if (key(0)='0' )then

GameSTATE <= betting;

else if (key(1)='0') then 

GameSTATE<=game;

else if (key(2)='0') then 

GameSTATE<=error1; 

else if (key(3)='0') then 

GameSTATE<=error2;

else GameSTATE<=welcome; 

end if;

when betting =>

if (key(0)='0') then

GameSTATE<= betting_check;

else if (key(1)='0') then

GameSTATE<= game;

else if (key(2)='0') then

GameSTATE<=error3;

else if (key(3)='0') then

GameSTATE<=error4;

else if (sw(0)='0') then

GameSTATE<=welcome;

else GameSTATE<=betting;

end if ;

when betting_check =>

if (key(0)='0') then

GameSTATE <= welcome;

else if (key(1)='0') then

GameSTATE <= game;

else if (key(2)='0') then

GameSTATE <=error5;

else if (key(3)='0' )then

GameSTATE <=error6;

else if (sw(0)='0') then

GameSTATE <=welcome;

else GameSTATE <=betting_check;

end if;

when game =>

if (key(0)='0') then

GameSTATE <=betting;

else if (key(1)='0') then

GameSTATE <= game;

else if (key(2)='0') then

GameSTATE <=once_button;

else if (key(3)='0') then

GameSTATE <=each_button;

else if (sw(0)='0') then

GameSTATE <=welcome;

else GameSTATE <=betting_check;

end if;

end if;

when once_button =>

if (key(2)='0') then 

if (seg_input1=seg_input2 and seg_input2 =seg_input3 and seg_input3 =seg_input4) then

GameSTATE<=win;

else if (seg_input1/=seg_input2 and seg_input2/=seg_input3 and seg_input3/=seg_input4) then

GameSTATE<= lose;

else GameSTATE<=once_button;

end if;

end if;

when each_button =>

if (key(3)='0') then

GameSTATE <=each1;

else if (key(0)='0') then

GameSTATE <=betting;

else if (key(1)='0') then

GameSTATE <=game;

else if (key(2)='0' )then

GameSTATE <=once_button;

else if (sw(0)='0') then

GameSTATE <=welcome;

else GameSTATE<=each_button;

end if;

when each1 =>

if (key(3)='0' )then

GameSTATE <=each2;

else if (key(0)='0') then

GameSTATE <=betting;

else if (key(1)='0') then

GameSTATE <=game;

else if (key(2)='0') then

GameSTATE <=once_button;

else if (sw(0)='0') then

GameSTATE <=welcome;

else GameSTATE<=each1;

end if;

when each2 =>

if (key(3)='0') then

GameSTATE <=each3;

else if (key(0)='0') then

GameSTATE <=betting;

else if (key(1)='0') then

GameSTATE <=game;

else if (key(2)='0') then

GameSTATE <=once_button;

else if (sw(0)='0') then

GameSTATE <=welcome;

else GameSTATE<=each2;

end if;

when each3 =>

if (key(3)='0') then 

if (seg_input1=seg_input2 and seg_input2=seg_input3 and seg_input3 =seg_input4) then

GameSTATE<=win;

else if (seg_input1/=seg_input2 and seg_input2 /=seg_input3 and seg_input3/=seg_input4) then

GameSTATE<= lose;

else GameSTATE<=each3;

end if;

end if;

when win =>

GameSTATE<=welcome;

when lose =>

GameSTATE<=welcome;

when error1 =>

GameSTATE<=welcome;

when error2 =>

GameSTATE<=welcome;

when error3 =>

GameSTATE<=betting;

when error4 =>

GameSTATE<=betting;

when error5 =>

GameSTATE<=betting_check;

when others => 

GameSTATE<=betting_check;

end if;

segin1<=seg_input1;

segin2<=seg_input2;

segin3<=seg_input3;

segin4<=seg_input4;

end process;

[Altera_Forum]

Info: ******************************************************************* 

Info: Running Quartus II 64-Bit Analysis & Synthesis  Info: Version 13.1.0 Build 162 10/23/2013 SJ Web Edition  Info: Processing started: Wed Jun 14 06:40:16 2017 Info: Command: quartus_map --read_settings_files=on --write_settings_files=off slotmachine -c slotmachine Info (20030): Parallel compilation is enabled and will use 4 of the 4 processors detected Error (10500): VHDL syntax error at slotmachine.vhd(152) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(169) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(186) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(203) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(214) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(232) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(249) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(267) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(278) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(282) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(288) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(292) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(296) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(300) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(304) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(308) near text "when"; expecting "end", or "(", or an identifier ("when" is a reserved keyword), or a sequential statement Error (10500): VHDL syntax error at slotmachine.vhd(317) near text "process"; expecting "if" Error (10500): VHDL syntax error at slotmachine.vhd(321) near text "begin"; expecting ":=", or "<=" Error (10500): VHDL syntax error at slotmachine.vhd(476) near text "process"; expecting "if" Info (12021): Found 0 design units, including 0 entities, in source file slotmachine.vhd Error: Quartus II 64-Bit Analysis & Synthesis was unsuccessful. 19 errors, 0 warnings  Error: Peak virtual memory: 543 megabytes  Error: Processing ended: Wed Jun 14 06:40:19 2017  Error: Elapsed time: 00:00:03  Error: Total CPU time (on all processors): 00:00:01 Error (293001): Quartus II Full Compilation was unsuccessful. 21 errors, 0 warnings

[Altera_Forum]

case is when phrase have all error ,, ** when000 =>00000 **** like this sentence

[Altera_Forum]

could you edit your post so the code is in code tags and keeps the indentatio s etc? that makes it more readable. having said that, then you should check just before line 152, you probably forgot so mething like an end statement, as the error is telling you it expected before it saw the when.

[Altera_Forum]

You are using "else if" 

This opens a new if statement. I think you meant "elsif"

[Altera_Forum]

As a general note, when you end up with a big list of errors you're probably forgetting to close an expression with a comma or a semicolon. Check the first error at the lowest line number and your problem is *probably* going to be around there.