When deploying a SharePoint app in SharePoint Online, you may receive the "all too helpful" error message: Error occurred in deployment step 'Install App for SharePoint': Failed to install App for SharePoint. Please see the output window for details. If you force the installation to continue, you will most likely see a Correlation ID error page. Then if you look at the Build Log within Visual Studio, you see another set of "all too helpful" information that may or may not ... Read More