Sharepoint app ERROR :

An exception of type 'Microsoft.SharePoint.Client.ServerUnauthorizedAccessException' occurred in Microsoft.SharePoint.Client.Runtime.dll but was not handled in user code

Additional information: Access denied. You do not have permission to perform this action or access this resource.



Solution :
According to your requirment change the permissioons by default its read only permission now u can chnage it to any level basing on your requirment .
you can find your appmanifest file under ur app project name ..



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