A different version of this App is already installed with the same version number. You need to delete the app from the site and the site recycle bin to install this version.

Environment: Office365, SharePoint Online, Visual Studio 2015

Requirement: Re-Deploy an SharePoint Add-in into SharePoint Online Developer site

Approach: The Add-in is build successfully, but was getting an error when it is deployed using Visual Studio or added to Apps list in Developer site.

Issue/Error: A different version of this App is already installed with the same version number.  You need to delete the app from the site and the site recycle bin to install this version.

Resolution: We could not delete the app as it was neither in site recycle bin nor second-stage recycle bin. Clean and Retract the app from Visual Studio. Redeploy it again after successful retraction.

Add text or image between suite bar in Ribbon

Environment: SharePoint 2013 Enterprise

Requirement: Add text or image between suite bars

Solution:

Edit the master page using SharePoint Designer and add <div> tags with banner text or images as required. The following code snippet is from the out of the box seattle.master page. Text that are highlighted are inserted between the suite bars.

<div id="suiteBar" class="ms-dialogHidden noindex" >

  <div id="suiteBarLeft">

  <div class="ms-table ms-fullWidth">

     <div class="ms-tableRow">

        <div class="ms-tableCell ms-verticalAlignMiddle">

                <SharePoint:DelegateControl id="ID_SuiteBarBrandingDelegate" ControlId="SuiteBarBrandingDelegate" runat="server"/>

        </div>

        <div class="ms-tableCell ms-verticalAlignMiddle" style="text-align:center;font-weight:bold;color:#FF3300;"> [[[ SOME BANNER IMAGES ]]] </div>

        <SharePoint:AjaxDelta runat="server" id="DeltaSuiteLinks" BlockElement="true" CssClass="ms-core-deltaSuiteLinks">

            <div id="suiteLinksBox">

                <SharePoint:DelegateControl id="ID_SuiteLinksDelegate" ControlId="SuiteLinksDelegate" runat="server" />

            </div>                                                                                                              

         </SharePoint:AjaxDelta>

         <div class="ms-tableCell ms-verticalAlignMiddle" style="text-align:center; font-weight:bold;color:#FF3300;"> [[[ SOME BANNER TEXT ]]] </div>

      </div>

  </div>

</div>

To insert a row below the Suite bar

<SharePoint:ThemedClusteredHoverImage

                                    runat="server"

                                    ……………………

</span>

</div>

</SharePoint:AjaxDelta>

</div>

</div>

<div id="s4-ribbonrow ms-verticalAlignMiddle" style="text-align:center;font-size:large;font-weight:bold; background-color:#6699FF;">[[ SOME SAMPLE TEXT/BANNER ]]</div>

<div id="ms-hcTest"></div>

<div id="s4-ribbonrow">

<div id="globalNavBox" class="noindex">

<div id="ribbonBox">

  <div id="s4-ribboncont">

  <SharePoint:AjaxDelta id="DeltaSPRibbon" BlockElement="true" runat="server">

                <SharePoint:DelegateControl runat="server" ID="GlobalDelegate0" ControlId="GlobalSiteLink0" />

                  <SharePoint:SPRibbon

                                    runat="server"

                                    PlaceholderElementId="RibbonContainer"

                                    CssFile="" >

                                    <SharePoint:SPRibbonPeripheralContent

                                      runat="server"

                                      CssClass="ms-core-defaultFont ms-dialogHidden"

                                      Location="TabRowLeft">

                                    </SharePoint:SPRibbonPeripheralContent>

P.S. Create appropriate CSS classes and add to the style sheet.