Eclipse error … cannot be resolved to a type

Question

I have a dynamic web project that I am working on to migrate a jsp/servlet app from JRun to Tomcat.

I am getting the error: com.ibm.ivj.eab.dab.DatastoreJDBC<

Answer 1

Easy Solution:
Go to

Project property -> java builder path -> maven -> find c3p0-0.9.5.2.jar

and see the location where the file is stored in the local repository and go to this location and delete the repository manually.

Answer 2

• Right click Project > Properties
• Java Build Path > Add Class Folder
• Select the bin folder
• Click ok
• Switch Order and Export tab
• Select the newly added bin path move UP
• Click Apply button

Answer 3

For many new users don't forget to add an asterisk (*) after your import statements if you wanna use all the classes in a package....for example

import java.io.*;

public class Learning 
{
    public static void main(String[] args) 
    {
        BufferedInputStream sd = new BufferedInputStream(System.in);
            // no error
    }
}

================================================================

import java.io;

public class Learning 
{
    public static void main(String[] args) 
    {
        BufferedInputStream sd = new BufferedInputStream(System.in);
            // BufferedInputStream cannot be resolved to a type error
    }
}

Answer 4

To solve the error "...cannot be resolved to a type.." do the followings:

1. Right click on the class and select "Build Path-->Exclude"
2. Again right click on the class and select "Build Path-->Include"

It works for me.

Answer 5

There are two ways to solve the issue "cannot be resolved to a type ":

1. For non maven project, add jars manually in a folder and add it in java build path. This would solve the compilation errors.
2. For maven project, right click on the project and go to maven -> update project. Select all the projects where you are getting compilation errors and also check "Force update of snapshots/releases". This will update the project and fix the compilation errors.

Answer 6

Also If you are using mavenised project then try to update your project by clicking Alt+F5. Or right click on the application and go to maven /update project.

It builds all your components and resolves if any import error is there.