Getting Incremental Cucumber error while adding PostgresSQL JDBC driver

Off-topic Testing Efficiency
1

Hi Team,

Downloaded PostgresSQL JDBC driver postgresql-42.7.5, while adding driver I am getting error as “Incremental Cucumber loading…”

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2

To resolve the PostgreSQL JDBC driver installation error in Katalon Studio when encountering the “Incremental Cucumber loading…” issue:

Step-by-Step Solution

1. Verify JDBC Driver Compatibility

  • Ensure the PostgreSQL JDBC driver version (postgresql-42.7.5.jar) matches your PostgreSQL database version and Java runtime:
    • PostgreSQL 15+ → Use JDBC 42.x.
    • Java 8+ → Use JDBC 42.x (older Java versions require JDBC 4.1 or earlier).
    • Download the correct driver from the official site.

2. Place the Driver in the Correct Folder

Move the .jar file to Katalon’s Drivers or Libs directory:

your-project/
├── Drivers/
│   └── postgresql-42.7.5.jar
└── ...

3. Add the Driver to Katalon’s Classpath

  • In Katalon Studio, go to Project > Settings > Build Tool > Library Management.
  • Click Add, select the .jar file, and apply changes.

4. Disable Cucumber Plugins (Temporarily)

The “Incremental Cucumber loading…” error often occurs due to plugin conflicts:

  1. Go to Help > Marketplace.
  2. Uninstall or disable Cucumber Plugins (if installed).
  3. Restart Katalon Studio.

5. Clean the Project and Rebuild

  1. Navigate to Project > Clean.
  2. Restart Katalon Studio to refresh dependencies.

6. Test the Connection

Use this sample code to verify the driver works:

import java.sql.DriverManager

// Load the driver
Class.forName("org.postgresql.Driver")

// Connect to PostgreSQL
String url = "jdbc:postgresql://localhost:5432/your_database"
String user = "your_user"
String password = "your_password"

Connection connection = DriverManager.getConnection(url, user, password)
println "Connection successful: " + connection.toString()
connection.close()

Common Fixes for Specific Errors

Error/Cause Solution
ClassNotFoundException: org.postgresql.Driver Driver not added to classpath. Repeat Step 2–3.
No suitable driver found Invalid JDBC URL format. Use jdbc:postgresql://host:port/db.
Cucumber plugin conflict Disable plugins in Help > Marketplace and retry.
Corrupted JAR file Re-download the driver and replace the existing file.

Alternative: Use Maven/Gradle (Recommended for Advanced Users)

Add the PostgreSQL JDBC dependency to your pom.xml (Maven) or build.gradle (Gradle):

Maven:

xml

<dependency>
  <groupId>org.postgresql</groupId>
  <artifactId>postgresql</artifactId>
  <version>42.7.5</version>
</dependency>

Gradle:

implementation 'org.postgresql:postgresql:42.7.5'

Final Checks

  • Ensure no duplicate .jar files exist in the project.
  • Update Katalon Studio to the latest version (Help > Check Updates).
  • If using Docker/Remote DB, verify network/firewall settings.

This should resolve the PostgreSQL JDBC driver installation error and Cucumber conflicts. Let me know if you need further troubleshooting

3

Hi @sravanthi.dosapati,

Welcome to our community. Thank you for sharing your issue.

I will ask my team about this and back to you soon

4

Thank You Dinesh and Elly, Now the issue is resolved.

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5

It’s great to hear that you have solved your issue. Can you please help provide the solution so that others can refer to that? Thank you

6

kindly share your resolution