# Adding OpenStreetMapLayer displays "Parameter is not Valid"

**URL:** <https://community.thinkgeo.com/t/adding-openstreetmaplayer-displays-parameter-is-not-valid/6101>\
**Category:** WebForms\
**Created:** [January 12, 2012, 12:21pm UTC](https://community.thinkgeo.com/t/adding-openstreetmaplayer-displays-parameter-is-not-valid/6101 "2012-01-12T12:21:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Franklin](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/f/3e96dc/32.png) [@Franklin](https://community.thinkgeo.com/u/Franklin)\
**Post date:** [January 12, 2012, 12:21pm UTC](https://community.thinkgeo.com/t/adding-openstreetmaplayer-displays-parameter-is-not-valid/6101/1 "2012-01-12T12:21:39Z")

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&nbsp;We&nbsp;are&nbsp;trying&nbsp;to&nbsp;add&nbsp;OpenStreetMapLayer&nbsp;to&nbsp;our&nbsp;maps&nbsp;page.&nbsp;And&nbsp;a&nbsp;simple&nbsp;web&nbsp;page&nbsp;with&nbsp;the&nbsp;code&nbsp;shown&nbsp;below&nbsp;is&nbsp;not&nbsp;working&nbsp;in&nbsp;our&nbsp;production&nbsp;server.&nbsp;It&nbsp;displays&nbsp;"Parameter&nbsp;is&nbsp;not&nbsp;valid"&nbsp;on&nbsp;every&nbsp;tiles&nbsp;in&nbsp;the&nbsp;maps.&nbsp;&nbsp;But&nbsp;it&nbsp;is&nbsp;working&nbsp;in&nbsp;our&nbsp;developement&nbsp;environment.

`        protected void Page_Load(object sender, EventArgs e)        {            if (!Page.IsPostBack)            {                Map1.MapBackground.BackgroundBrush = new GeoSolidBrush(GeoColor.FromHtml("#E5E3DF"));                Map1.CurrentExtent = new RectangleShape(-13939426.6371, 6701997.4056, -7812401.86, 2626987.386962);                Map1.MapUnit = GeographyUnit.Meter;                Map1.MapTools.MouseCoordinate.Enabled = true;                OpenStreetMapLayer osmOverlay = new OpenStreetMapLayer();                Map1.StaticOverlay.Layers.Add(osmOverlay);            }        }`

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**Author:** ![Gary2](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/g/49beb7/32.png) [@Gary2](https://community.thinkgeo.com/u/Gary2)\
**Post date:** [January 13, 2012, 1:47pm UTC](https://community.thinkgeo.com/t/adding-openstreetmaplayer-displays-parameter-is-not-valid/6101/2 "2012-01-13T13:47:31Z")

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Hello&nbsp;Franklin,&nbsp;  
&nbsp;&nbsp;  
&nbsp;Thanks&nbsp;for&nbsp;your&nbsp;post,&nbsp;and&nbsp;I&nbsp;noticed&nbsp;you&nbsp;have&nbsp;created&nbsp;a&nbsp;ticket&nbsp;for&nbsp;this&nbsp;question,&nbsp;I&nbsp;will&nbsp;answer&nbsp;in&nbsp;the&nbsp;ticket.&nbsp;  
&nbsp;&nbsp;  
&nbsp;Regards,&nbsp;  
&nbsp;&nbsp;  
&nbsp;Gary