MonoGame Pipeline Tool error

C:/Users/Yann/Documents/Visual Studio 2013/Projects/PumpkinShooter/PumpkinShooter.Content/Textures/weapon_texture.png: error: Importer 'TextureImporter' had unexpected failure!
System.DllNotFoundException: Impossible de charger la DLL 'FreeImage': Le module sp‚cifi‚ est introuvable. (Exception de HRESULT : 0x8007007E)
   … FreeImageAPI.FreeImage.GetFileType(String filename, Int32 size)
   … FreeImageAPI.FreeImage.LoadEx(String filename, FREE_IMAGE_LOAD_FLAGS flags, FREE_IMAGE_FORMAT& format)
   … Microsoft.Xna.Framework.Content.Pipeline.TextureImporter.Import(String filename, ContentImporterContext context)
   … Microsoft.Xna.Framework.Content.Pipeline.ContentImporter`1.Microsoft.Xna.Framework.Content.Pipeline.IContentImporter.Import(String filename, ContentImporterContext context)
   … MonoGame.Framework.Content.Pipeline.Builder.PipelineManager.ProcessContent(PipelineBuildEvent pipelineEvent)