Appian SharePoint Plug-ins shows this error even though all web services validat

Appian SharePoint Plug-ins shows this error even though all web services validated using browser. "The source was not found, but some or all event logs could not be searched. To create the source, you need permission to read all event logs to make sure that the new source name is unique. Inaccessible logs: Security"

localhost/.../Appian.SharePoint.Sites.asmx
localhost/.../Appian.SharePoint.Folders.asmx
localhost/.../Appian.SharePoint.Documents.asmx
localhost/.../Appian.SharePoint.Lists.asmx
localhost/.../Appian.SharePoint.Permissions.asmx
...

OriginalPostID-107529

OriginalPostID-107529