The method builder() is undefined for the type BuilderExample

Question

package ee;
import lombok.Builder;
@Builder
public class BuilderExample {
        public String foo;
        public String ha;
}

package ee;
import ee.BuilderExample ;
public class Main{
public static void main(String a[]){
BuilderExample b=BuilderExample.builder().foo("hi").ha("anything").build();
}}

In this code it shows an error The method builder() is undefined for the type BuilderExample Exception in thread "main" java.lang.Error: Unresolved compilation problem: The method builder() is undefined for the type BuilderExample showing an error like this why?

https://stackoverflow.com/questions/36909672/how-to-use-lombok-builder-annotation-on-methods — renjeesh n, Jun 22 '18 at 15:59
I'm using Eclipse Java EE IDE Version: Oxygen.3a Release (4.7.3a) — renjeesh n, Jun 22 '18 at 16:02

score 10 · Answer 1 · answered Jul 31 '19 at 14:21

10

Follow the below steps for eclipse/STS

Close your IDE
Download the Lombok jar from the https://projectlombok.org/download
Double click the jar
Follow the steps mentioned in the https://projectlombok.org/setup/eclipse
Open your IDE

If it is still not resolved then close your project and open again.

Hope it works.

answered Jul 31 '19 at 14:21

Tamil

1,193
9
24

It works for me, just added STS path to Lombok jar, thank you – Sachin Jun 18 '21 at 08:41

score 7 · Answer 2 · answered Jul 27 '20 at 11:32

I faced the issue in both Intellij and eclipse Just by installing the lombok, we can simply erradicate the issue

Infact I have followed the answers in this question to solve the issue, but making it even more clear and understandable for layman also

Step 1:

Close your IDE.

Step 2:

Download lombox jar => https://projectlombok.org/download

Step 3:

Run the jar. To run the jar, Open command prompt in the jar location and enter below command

java -jar lombok.jar

After giving this command It will prompt you something like this

If your IDE is not there is in default locations, you will encounter such issues Click OK and specify the path of your IDE ex: Eclipse

After Specifying the path, the plugin will the installed

Step 4 :

Open your IDE and ReBuild your project

Now you won't face any issue.

score 2 · Answer 3 · answered Jul 03 '18 at 15:13

2

If you are using Eclipse, make sure lombok is installed correctly. You can verify that in the Eclipse About dialog, as described at the lombok website.

answered Jul 03 '18 at 15:13

Jan Rieke

7,027
2
20
30

score 1 · Answer 4 · answered Oct 06 '21 at 20:38

For Visual Studio Code users, the solution is add the following dependency to pom.xml:

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
    <version>1.18.20</version>
    <scope>provided</scope>
</dependency>

Sources:

score 1 · Answer 5 · answered Aug 24 '22 at 07:00

1

Install lombok in your eclipse. Do the following steps

Help->install new software
Type https://projectlombok.org/p2
Add and finish.

answered Aug 24 '22 at 07:00

Faseela Thayattuchira

459
6
13

score 0 · Answer 6 · answered Nov 07 '21 at 06:54

Error: The method builder() is undefined for the type BuilderExample in vs code.

My Soln: For VS Code and press Ctrl + Shift + X to open extension manager. Type lombok and click install. Reload VS Code when asked.

Then add the following dependency to pom.xml:

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
    <version>1.18.20</version>
    <scope>provided</scope>
</dependency>

Sources:

https://marketplace.visualstudio.com/items?itemName=GabrielBB.vscode-lombok

score 0 · Answer 7 · answered May 31 '22 at 18:01

0

For Spring Boot starters, using VS Code, just install Lombok extension. The dependencies are already added in pom.xml file Thanks Siddharth..

answered May 31 '22 at 18:01

Prateek Sinha

21
3

score 0 · Answer 8 · answered Feb 25 '23 at 15:00

0

What worked for me was to import all of lombok.

import lombok.*;

answered Feb 25 '23 at 15:00

Noe Viveros

21
1

The method builder() is undefined for the type BuilderExample

8 Answers8