rss viewer webpart is missing in sharepoint 2013 how to activate it - sharepoint-2013

rss viewer webpart is missing in sharepoint 2013 it is shown in default folder and when adding the rss viewer web part from default folder it shows the error 'An unexpected error occurred processing your request. Check the logs for details and correct the problem.'

The corresponding feature might not be enabled, so you should follow this path:
Under Site Settings, click Modify All Site Settings.
Under Site Collection Administration, click Site Collection Features.
Enable Office SharePoint Server Enterprise Site Collection features.
If the problem is not solved, you can try going to the central administration:
Under Central Administration, click on Operations.
Under Upgrade and Migration, select Enable Features On Existing Sites.
Select the appropriate checkbox, and click OK.

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How to reset customization of default home view in IBM Cognos 11.0.5 to default welcome page

While testing customization of Cognos 11.0.5 I've tried to make a dashboard the default home page following the steps in IBM knowledge center Here
On the Views tab of the Managing > Customization slide-out panel, click next to the default home view. You can now browse for a dashboard or report to be the default home view, or you can select a view in the list of home views to be the default home view for all users.
It worked well, but I made a dire mistake of replacing the selected dashboard with a newer developed version (copy-to --> overwrite), hence I think the default view is pointing to a no-longer-existing object (different new ID)
Cognos is now throwing error after sign-in that home page cannot be retrieved. I have been able to access it back using URL <webserver_name>:<port_number>/bi/?factoryMode=true
error screenshot
BUT what I'm struggling with is setting the default home page in "View" tab of the Managing > Customization back to home or another dashboard, instead, it is now BLANK with no settings to adjust neither "home page" nor "sign-in page" shows up!
I've tried to apply the default "IBM" theme again, restarting Cognos application but no go. the settings seem vanished in the "View" tab! Is there any way to reset the incorrect settings in the content server or the configuration manager?
Update: found settings under \ibm\cognos\analytics\configuration\data\flipper\config\global
That has the home page pointing configuration for the dispatcher to the perspective but still missing the "Views" settings from UI, looks it would require product support.

Master page showing unexpectedly

When I am clicking on the upload button in document web, inside that the section master page is showing (which should not).
How to remove this either in SharePoint designer or SharePoint 2013 itself?
Also, the site settings is showing up on home page (but it should show in a separate new page).
Screeshots:
It looks like you have a custom master page that is missing much of the core structure of a master page. In particular, an out of the box master page responds to a Query String value of "?IsDlg=1" to control if master page content is displayed in SharePoint dialog boxes along with primary page content.
To see this, go to a site without this custom master page and visit a list or library page. Edit the URL and, if there's no Query String (i.e. no "?" in the URL, add "?IsDlg=1" (no quotes), or if there is a query string add "&IsDlg=1" (no quotes). Notice the difference in the displayed content.
Something is missing from your custom master page. Either the lack of standard CSS classes or missing JavaScript references.
Can you reset the master page back to one of the out of the box master pages and check to see if everything is now working.
As the the Site Settings, someone must of added an IFRAME or a Page Viewer web part to the home page and set the URL to the Site Settings page.

Sitecore The layout for the requested document was not found

Getting below error while browsing CD site (Web DB) in sitecore.while browsing CMS site it's works fine.What could be the issue .We have restored the web db from master still facing same issue.
Error :
The layout for the requested document was not found
Most likely causes:
The resource you are looking for (or one of its dependencies) may have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
What you can try:
Go back to the previous page
Go to the start page
Additional Information:
Requested URL: /mysite/res/book
Requested Layout: {62A89386-861F-5210-9568-H8CADA118FFB}
Requested Device: Default
If the page you are trying to display exists, please check that an appropriate prefix has been added to the IgnoreUrlPrefixes setting in the web.config.
If the url works on your CM box and doesn't work on CD box, it looks like something is not published.
Try:
Login to your CM server and publish the whole site again with Republish everything option selected.
If 1. doesn't help, login to Sitecore Desktop, switch to the web database, navigate in Content Editor to the item you want to see. Check if the item is there and if presentation details are correct.
If item is NOT in web or layout is not in web database, switch back to master database and check if publishing restrictions are applied or if the item is in the final state of a workflow.
If the item and layouts are in the web database but the url still doesn't work, check your sites configuration in /sitecore/admin/showconfig.aspx whether your site is not restricted to some host names.

Oracle Apex workspace settings for multiple sessions for the same user account

Making Faster Navigation Between APEX Site-Designer Pages
I am having a few difficulties here as this may be a setting that I took for granted in other previous versions of Oracle APEX as before it may have been a default setting, but now the default has changed. Can anyone help me figure it out? I also explain why it was useful for me before...
How do you enable the Oracle APEX instance to permit logging in to the site-designer pages for a single workspace (Application Builder, SQL Workshop, Team Development modules, etc.) using the same user id through more than one browser window?
Note, I do this to save time from navigating between each section of the site-designer (even quick load times can slow down developing an application page or region because of constant shuttling back and forth to make small changes originally missing).
Example Use Case:
Oracle APEX Release: Application Express 4.2.6.00.03
Database Platform: Oracle 11g R2
Client-Agent(Browser): Firefox Release 33
Note, this was a fresh install from a lower version that was upgraded
several times up to the current APEX release.
LOG IN to Site-Designer with an account that has DEVELOPER or ADMIN level user privileges.
USE your own values for WORKSPACE, USER, PASSWORD.
CREATE a new PAGE level OBJECT (REGION, FORM, REPORT, etc.) and stop in the middle of the set-up wizard.
RIGHT-CLICK on a TOP LEVEL Menu item such as SQL WORKSHOP. Open it in a NEW WINDOW;
CREATE an object like a TABLE which can be used by the DESIGN WIZARD open in step 3.
The reason for trying to keep different browser sessions open for the same USER account allows users to go back to another section of the design tool to build other objects or app/page elements that were overlooked before initiating a design wizard process.
Observed Behavior:
The new session will allow the user to make a new database object, but when clicking back on the previous window with the session that is running the original wizard, the server prompts for a new log in because that session has been closed.
Thanks!
The solution I found when facing a similar situation was opening Apex in a couple of different web browsers in parallel, so i have Safari for the SQL workshop, and Chrome for the page designer..
so instead of ctrl-tab i use cmd-tab (or alt-tab for PC)
Our IT said it has something to do with session state..

Why is Insert > Related List not working in sharepoint 2013?

Hi I have got a few lists with Lookup fields from Source lists. I wish to have a Related lists (Webpart connections from 2007 days) where I select item from master and then child records are displayed. Although I have followed the instructions on the below article, the "relationship" bit is not working. The Related records from the child lists are not filtering rather showing all records from the child table.
http://office.microsoft.com/en-us/sharepoint-help/create-list-relationships-by-using-unique-and-lookup-columns-HA102771358.aspx
I also encountered this issue, and the solution is pretty simple, but not very obvious. When creating a new page, you MUST be sure that you create a page of type Web Part Page. When you use the default "Add a Page" option from the site settings menu, the default page type is a Wiki page, not a web part page. Even though you can add web parts to a Wiki page, the Wiki page does not include the functionality for implementing web part connections.
Once I created a page using one of the Web Part Page types, I was able to use web part connections.
have you tried this:
Browse to the affected page, and then open the page in edit mode.
Click the drop-down arrow in the upper-right corner of the Web Part for the tasks list, and then click Edit Web Part.
On the right side of the page in the Web Part properties controls, click the plus sign (+) on the Miscellaneous section, click to select the Server Render checkbox, and then click OK.
Save the changes to the page.
source: http://support.microsoft.com/kb/2924913