Error by compilation in one bit counter

SystemVerilog
,
1

Compile of env.sv failed with 1 errors.
click =>
** Error: scoreboard.sv(13): Typedef ‘scoreboard1’ multiply defined.
** Error: scoreboard.sv(13): Typedef ‘scoreboard1’ multiply defined.
** Error: stimulus.sv(11): Typedef ‘stimulus’ multiply defined.

code

class stimulus;
rand bit value;
constraint distribution {value dist { 0 := 1 , 1 := 1 }; }
endclass

class scoreboard1;
//stimulus sti;
bit [0:3] store;

/*task exp(stimulus sti);

 sti = new();
 store = store + sti.value;// Cal exp value and store in Scoreboard

endtask*/

endclass

always problem in
stimulus & scorboard class

whenever i make verification environment ,always got this problem so plz guide me to make far away to such kind of mistake.
plz check and discuused
thanks to all.

2

This error is most likely because you are compiling the file multiple times, probably because you are `including the file multiple times. Please check you compilation log files for that.

Our recommended compilation strategy is to include your class files once into a package, and then import the package. See [this link](http://go.mentor.com/package-import-versus-include) for the difference between import and include.

3

In reply to dave_59:

actully i am in learnning period.
you can go this website

http://www.testbench.in/TS_23_ONES_COUNTER_EXAMPLE.html

plz help me

where can put package guide me.

4

In reply to Nishant Kumar:

my package file

package s;
`include"stimulus.sv"
endpackage:s

package m;
`include"monitor.sv"
endpackage:m

package s;
`include"scoreboard1.sv"
endpackage:s

package d;
`include"driver.sv"
endpackage:d

and wher i need that `include
import package like

package R;
import s::stimulus;

endpackage : R

package w;
import s::scoreboard;
endpackage : w

package x;
import d::driver;

endpackage : x

package y;
import m::monitor;
endpackage : y

according to need in environment file
imported package
similar importing done in whereever neede that particular class

error are like

Error: C:\modeltech_6.5\examples\scoreboard.sv(14): Could not find the package (s).

  • Error: C:\modeltech_6.5\examples\test_2.sv(14): Could not find the package (e).
    – Compiling program testcase
    ** Error: C:\modeltech_6.5\examples\test_2.sv(41): ‘environment’ is an unknown type.
    Or did you omit the ‘()’ for an instantiation?
    ** Error: C:\modeltech_6.5\examples\test_2.sv(46): ‘env’ is not a variable
    ** Error: C:\modeltech_6.5\examples\test_2.sv(46): Illegal LHS of assignment.
    ** Error: C:\modeltech_6.5\examples\test_2.sv(46): Illegal LHS of ‘new’ assignment.
    ** Error: C:\modeltech_6.5\examples\test_2.sv(46): ‘new’ must be used to assign to a class or covergroup handle.
    ** Error: C:\modeltech_6.5\examples\test_2.sv(46): Inappropriate use of ‘new’
    ** Error: C:\modeltech_6.5\examples\test_2.sv(53): Internal error: …/…/…/src/vlog/vresolve.c(412)

Could not find the package (s)

plz help me