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I am trying to incorporate a WPS running in GeoServer into an OpenLayers client. I am using this simple example as my reference.

Using either a local install of OpenLayers.js (v 2.12), or the http://openlayers.org/api/OpenLayers.js, I get an error when the WPSClient is created. In Firefox, I get OpenLayers.WPSClient is not a constructor.

Can anyone help me out with this error?

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  • I have the same problem of user890. I am using the API version 2.11. Of course OpenLayers.WPSClient class is not written inside. But when I try to use the version given before (Release 2.13 dev) in my web portal, this library looks to have some errors and I can't use it in Eclipse + Tomcat 7. I don't know what can be happening. When I use the same library in the same project in Dreamweaver without web server I am able to use the library. Does anyone know what is wrong with it? Thanks in advance Rafael
    – Rapha Casgi
    Commented Feb 21, 2013 at 15:42

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The error is due to WPSClient class not available in your API version. Try this OpenLayers.js instead of yours. You are using a stable version of API for a developement version of WPS example. If you open the link below you can see OpenLayer.WPSClient class written inside the js file.

Hope that helps

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