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Use ExportTileCacheTask catch a exception

xiaoguangyan

when I execute "await ExportTileCacheTask.CreateAsync(basemap.Source);" catch a Invalid response: Service does not support tile export. I use map in https://www.arcgis.com/home/group.html?owner=esri&title=Tiled%20Basemaps&start=11&q for export also catch this exception

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AnttiKajanus1

You can see more about authentication from Use the Authentication Manager—ArcGIS Runtime SDK for .NET | ArcGIS for Developers or have a look to the samples arcgis-runtime-samples-dotnet/src/WPF/ArcGISRuntime.WPF.Samples/Samples/Security at master · Esri/arcgis-runtime-samples…

AnttiKajanus1

That is expected if you haven't signed in to ArcGIS Online since the export tiles feature is available to subscribed users (operation doesn't consume credits but you have to be signed in to have a access to it).

xiaoguangyan

Hi, Antti

I just tested your uri, it will catch the "Token Required" exception

AnttiKajanus1

Hi,

Can you give the exact code / url that you are using? Following seems to work without any problems.

<SPAN class="keyword token">var</SPAN> task <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> ExportTileCacheTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">CreateAsync</SPAN><SPAN class="punctuation token">(</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token"><SPAN>"</SPAN><A class="jive-link-external-small" href="https://community.esri.com/external-link.jspa?url=https%3A%2F%2Ftiledbasemaps.arcgis.com%2Farcgis%2Frest%2Fservices%2FWorld_Street_Map%2FMapServer" target="_blank">https://tiledbasemaps.arcgis.com/arcgis/rest/services/World_Street_Map/MapServer</A><SPAN>"</SPAN></SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Remember that you shouldn't use the service "For export" services as your basemaps, they are intended to be used for taking tiles offline and not visualization.

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