c＃错误1找不到类型或名称空间名称”（是否缺少using指令或程序集引用？）

Question

I'm trying to make a DLL of a base class that is inherited by classes in another DLL and I'm getting the above error when I name the namespace and the class anything but the default name.

This is what I want it to look like:

namespace SportsBaseClasses
{
   class BaseClass
   {

It works when it looks like this:

namespace ClassLibrary1
{
   public class Class1
   {

I'm using the appropriate "using" and I have it added as a reference. I've looked up this question half a dozen times and no one else seems to have this problem. Thank you in advance for your help.

Answer 1

Try making BaseClass public.

namespace SportsBaseClasses
{
   public class BaseClass
   {

Answer 2

Or may be try

using ClassLibrary1.Class1

OR

using BaseClass = ClassLibrary1.Class1