Frequently Asked Question

Symptom

• Some Need4Viz charts are not displayed in Web Intelligence documents (blank cell)
• Other Need4Viz charts are displayed correctly (vertical table...)
• Other Need4Viz charts are displayed incorrectly (Filter table chart)

Reason and Prerequisites

Environment:

• SAP BusinessObjects Business Intelligence Platform all versions
• Need4Viz : all versions
  

Steps To Reproduce:

1. In a Webi report, configure a new Need4Viz chart (Drillbar chart)
2. When validated, the chart is not displayed (the cell stay blank)
3. Turn the chart into Need4Viz Vertical scroll table
4. When validated, the chart is displayed correctly

Cause:

• A : This issue is caused by a problem of access to the Need4Viz web application on the webserver (Tomcat). The needed N4VCustomElements webapp folder has probably been set uncorrectly during the Need4Viz installation setup.
• B : The setting of Need4Viz web application server is not correct in the config.js file

Solution

A : Please check the Need4Viz web application is correctly deployed in your web application server.

For Tomcat (or Apache) :

• check the folder N4VCustomElements is in the ~installation_BOE_Folder\tomcat\webapps\ folder
• if not, search the N4VCustomElements or the res folder in your tomcat webapps folder
• move the N4VCustomElements\res folder inside the ~installation_BOE_Folder\tomcat\webapps\ folder
• Open a web browser (I.E. Chrome) and go to the URL http(s)://your_boe_server_url/N4VCustomElements
• The welcome N4VCustomElement webapp page should be displayed

B :

1. Edit the config.js file in

~installation_Need4Viz_Folder\nodejs\node_modules\custom_element\ce_libs

2. Check the following settings

Example for a standard SSL configuration

var URLNodeJSServer = 'https://your_boe_server_url';

var PORTTomcat = 443;

Example for a standard non-SSL configuration

var URLNodeJSServer = 'http://your_boe_server_url';

var PORTTomcat = 80;

3. Then stop and restart Need4Viz services.