QRadar: QRadar Log Source Management application fails to open due to error "New Application Required"

Troubleshooting

Problem

Administrators who try to open QRadar Log Source Management app might see the following error despite the latest version of the app is installed, "New Application Required. To modify a log source, you must use the QRadar Log Source Management app".

When this error appears, administrators cannot open the application.

Symptom

In the QRadar Log Source Management application after the administrator click to open the application, the following error is displayed:

Cause

The web browser cache prevents the application to detect the new version installed.

Environment

QRadar 7.4.0 and later.

Diagnosing The Problem

Log in to the QRadar Console GUI as the administrator user.
Click the Admin tab.
Click the QRadar Log Source Management Application.
The error "New Application Required. To modify a log source, you must use the QRadar Log Source Management app" is displayed.

Resolving The Problem

Ensure the latest version of the QRadar Log Source Management App is installed on the system.
Log in to the QRadar Console command-line interface (CLI) as the root user.
Restart the application.
Note: This procedure can be done in two ways, CLI by using the qappmanager utility and by accessing the API user interface. This article shows the CLI procedure.
1. Run the qappmanager utility.
```
/opt/qradar/support/qappmanager
```
2. Select option 24, "App instance - stop".
3. Select an Admin token. The token must have the "Admin" value for SP and Role columns.
4. Select the QRadar Log Source Management app-id, in this article is 1152.
5. Once the application is in STOPPED status, select option 23, "App instance - start".
Clear your browser cache. See How to Clear Cache and Cookies or refer to the browser documentation.
Open the QRadar Log Source Management application.

Result

The QRadar Log Source Management application opens successfully. Alternatively, administrators can run steps 1 - 3 and clear the Tomcat cache. See QRadar: How to clear the Tomcat cache.

If the administrator continues to experience issues after clear Tomcat's cache, contact QRadar Support for assistance.

Related Information

How to clear the Tomcat cache

How to Clear Cache and Cookies

QRadar: About the qappmanager support utility

QRadar: How to use the Assistant application to manage applications

Document Location

Worldwide

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