can't reference class from another project of the same solution

Question

My solution contains several projects including Commons and TerminatorConsole2. Now I want to refer Commons.Constants class from TerminatorConsole2.Utils.Constants file:

namespace TerminatorConsole2.Utils
{
    class Constants
    {
        public const string MANAGEMENT_CONSOLE_ADDRESS =
            Commons.Constants.USE_EXTRA_WCF_INSTANCE ?
                "net.pipe://localhost/xxx" :
                "net.pipe://localhost";

But I receive "Cannot resolve symbol" on "Commons". Adding "using Commons" doesn't help, I receive same error.

Why one project can not use class from another project of the same solution?

UPD Adding Constants class. However I already use it from one another project so I think this class is OK:

namespace Commons
{

public class Constants
{
    public const int MAX_INSTRUMENTS_NUMBER_IN_SYSTEM = 200;
    public const bool USE_EXTRA_WCF_INSTANCE = true;
}

}

did you add a project reference to the Common project? msdn.microsoft.com/en-us/library/wkze6zky.aspx — jeroenh
– jeroenh, Commented Oct 6, 2012 at 9:07

Adil · Accepted Answer · 2012-10-06 09:33:49Z

2

By default the scope of class is internal which mean could be accessed within that assembly Make the class public in order to make it accessible to other assemblies. More about access modifiers Also make sure you added the reference of assembly you are reffering.

Change

class Constants
    {
        public const string MANAGEMENT_CONSOLE_ADDRESS =
            Commons.Constants.USE_EXTRA_WCF_INSTANCE ?
                "net.pipe://localhost/xxx" :
                "net.pipe://localhost";

To

public class Constants
    {
        public const string MANAGEMENT_CONSOLE_ADDRESS =
            Commons.Constants.USE_EXTRA_WCF_INSTANCE ?
                "net.pipe://localhost/xxx" :
                "net.pipe://localhost";

edited Oct 6, 2012 at 9:33

answered Oct 6, 2012 at 9:01

Adil

148k25 gold badges217 silver badges207 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

codingbiz Over a year ago

is there a difference between the two? I think you missed the public class modifier

Adil Over a year ago

here you will find about public and other access modifiers msdn.microsoft.com/en-us/library/ms173121.aspx

Oleg Vazhnev Over a year ago

i shouldn't declare this class public. i just need to add reference as jeroenh said

Adil Over a year ago

I thought you added reference, Can you access this class in other assembly without making it public?

codingbiz · Accepted Answer · 2012-10-06 09:08:50Z

0

Try this: add public to class Constants

namespace TerminatorConsole2.Utils
{
    public class Constants
    {
        public const string MANAGEMENT_CONSOLE_ADDRESS =
            Commons.Constants.USE_EXTRA_WCF_INSTANCE ?
                "net.pipe://localhost/xxx" :
                "net.pipe://localhost";
    }
 }

answered Oct 6, 2012 at 9:08

codingbiz

26.4k9 gold badges62 silver badges99 bronze badges

1 Comment

codingbiz Over a year ago

did you add the reference to your project - hope you didn't forget that? Is it a console application or web application?

Matt · Accepted Answer · 2015-06-18 22:11:50Z

0

jeroenh correctly answered the question in a comment... I needed to add a reference.

I didn't need to declare the class public, since only class which is used should be public. class that "using" doesn't have to be public.

edited Jun 18, 2015 at 22:11

Matt

75.4k26 gold badges156 silver badges181 bronze badges

answered Oct 6, 2012 at 9:20

Oleg Vazhnev

24.2k56 gold badges184 silver badges316 bronze badges

Collectives™ on Stack Overflow

can't reference class from another project of the same solution

3 Answers 3

4 Comments

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related