Following are the common errors/issues you might encounter when installing the Celoxis App:
Error: Package install error. There are problems that prevent this package from being installed.
Reason: You might already have an instance of the Celoxis app installed in Salesforce.
- Error: Package Install Error. There are problems that prevent this package from being installed. Missing feature: Apex Classes
Reason: Celoxis Salesforce App uses Apex classes, which are not supported on 30 day trials. Please purchase your Salesforce.com edition before you can install the app. Alternately, you can install the app in a free Developer Edition trial account to get a test drive. - Error: Load unsafe content or Please reload your browser message (even after refreshing browser window)
Reason: Occasionally your Celoxis configuration URL may not have 'https' that may cause this issue. Please verify that your configuration URL has 'https://'. Login in as administrator into your Salesforce.com account.
Go to Setup > Installed Package. Click on 'Configure' link next to "Celoxis". In the URL field, change the http to https. Save changes. Now try accessing your Salesforce Opportunity page.