Forms Designer Forum

I installed a trial version for an Office 365 SharePoint site but I keep getting the following error message when I attempt to launch Forms Designer and connect to the list:

System.Net.WebException: The remote server returned an error: (401) Unauthorized.
at System.Net.HttpWebRequest.GetResponse()
at Microsoft.SharePoint.Client.SPWebRequestExecutor.Execute()
at Microsoft.SharePoint.Client.ClientContext.GetFormDigestInfoPrivate()
at Microsoft.SharePoint.Client.ClientContext.EnsureFormDigest()
at Microsoft.SharePoint.Client.ClientContext.ExecuteQuery()
at mrt9EoHw1UBjKQUBe5.JdqjwXhtXl94Sl6ymV.pEBvcSTG06()
at mrt9EoHw1UBjKQUBe5.JdqjwXhtXl94Sl6ymV.LYSxiYCHhx()
at ptgZX9dXa5jl0rmcfd.SwwnjETEEZuImTElKl.<>c.<EnsureDeployment>b__17_0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at ptgZX9dXa5jl0rmcfd.SwwnjETEEZuImTElKl.<EnsureDeployment>d__17.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at FormsDesigner.ViewModels.DesignerViewModel.<EnsureDeploymentAsync>d__186.MoveNext()

Dear Adam,
This error occurs when the currently logged in user doesn't have Full Control permissions for the site, they try to edit form for. Are you sure that you are logging in as SharePoint admin with Full Permissions for this specific site?