1. Kony App Build Failing

Understanding the Issue

Applications fail to build, causing deployment issues on iOS or Android.

Root Causes

• Incorrect SDK versions for target platforms.
• Misconfigured build settings in Kony Visualizer.
• Conflicting dependencies in external libraries.

Fix

Ensure correct platform SDK versions are installed:

Android: Use Android SDK version supported by Kony.
iOS: Ensure Xcode and CocoaPods are up to date.

Verify build settings in project.properties:

BuildConfig.includeLibraryFiles = true

Clean and rebuild the project:

rm -rf build/
kony build

2. API Calls Not Working in Kony Apps

Understanding the Issue

API requests fail or do not return expected responses.

Root Causes

• Incorrect backend service configurations.
• CORS (Cross-Origin Resource Sharing) issues.
• Invalid headers or authentication tokens.

Fix

Ensure correct API endpoint configuration in Kony Fabric:

serviceurl: "https://api.example.com/endpoint"

Handle CORS by setting appropriate headers:

Access-Control-Allow-Origin: *

Log API responses to debug request issues:

var response = kony.net.invokeServiceAsync("myService", params, callback);

3. Kony App Performance Issues

Understanding the Issue

Apps experience slow UI rendering, laggy transitions, or high memory usage.

Root Causes

• Too many UI components loaded simultaneously.
• Unoptimized event listeners causing re-renders.
• Large data sets processed on the client side.

Fix

Optimize UI rendering by lazy loading components:

frmMain.show({transition: "fade", duration: 0.3});

Reduce memory usage by clearing unused variables:

delete myObject;

Implement pagination for large data sets:

fetchData(offset, limit);

4. Debugging Kony Applications

Understanding the Issue

Errors occur, but debugging logs are unclear or missing.

Root Causes

• Logging not enabled for debugging.
• Errors occurring before UI initialization.
• Unhandled exceptions crashing the app.

Fix

Enable verbose logging in Kony:

kony.print("Debug message: " + JSON.stringify(data));

Use try-catch blocks to handle runtime errors:

try {
    someFunction();
} catch (e) {
    kony.print("Error: " + e.message);
}

Inspect logs using Kony Visualizer:

Window → Console → View Logs

5. Compatibility Issues Across Devices

Understanding the Issue

App UI or functionality behaves differently on iOS, Android, and web.

Root Causes

• Platform-specific inconsistencies in Kony UI widgets.
• Native API access behaving differently per OS.
• Custom styling not applying consistently.

Fix

Use platform-specific logic where necessary:

if (kony.os.deviceInfo().name === "iPhone") {
    // iOS-specific code
}

Ensure consistent styling across platforms:

widget.skin = "customSkin";

Test on multiple devices using Kony Emulator:

Kony Visualizer → Device Preview

Conclusion

Kony (Temenos Quantum) enables cross-platform mobile development, but troubleshooting build failures, API errors, performance issues, debugging challenges, and compatibility inconsistencies is essential for a smooth development process. By ensuring correct configurations, optimizing UI performance, and leveraging Kony Fabric for backend integrations, developers can create reliable enterprise-grade mobile applications.

FAQs

1. Why is my Kony app not building?

Ensure the correct SDK versions are installed, check build settings, and resolve dependency conflicts.

2. How do I debug API issues in Kony?

Enable logging, verify API configurations in Kony Fabric, and handle CORS issues properly.

3. How can I improve the performance of my Kony application?

Use lazy loading, reduce unnecessary UI components, and paginate large data sets.

4. Why is my Kony app behaving differently on iOS and Android?

Check for platform-specific behavior, use device detection logic, and apply consistent styling.

5. How do I enable debugging in Kony Visualizer?

Use kony.print() for logging, enable verbose logs, and inspect errors in the console.