In web config file when run this show error

Question

Erro2 It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level.  This error can be caused by a virtual directory not being configured as an application in IIS. E:\shopaquasportbck2014\tirage\web.config

our compiler give Error hare in webconfig file how can resolve this error (My website is not run on local host ) 

<authentication mode="Forms">

<forms name=".authTirage" path="/" loginUrl="admin/login.aspx" protection="All" timeout="20" defaultUrl="admin/index.aspx">

<credentials passwordFormat="Clear">

<user name="martial" password="miri01"></user>

<user name="simon" password="simon113"></user>

</credentials>

</forms>

</authentication>