[mapguide-users] How to troubleshoot "The specified class was not found"?

[Hans Milling]

I just remembered that this error could also mean that the FDO provider does
not provide the method that MapGuide tries to use.
A great example is, if you enable selection on a raster layer. Raster does
not support querying the map for data. If you try to query a tooltip or
selection on a raster layer MapGuide will throw an error, because the raster
layer does not support the query functions. In other words, do not enable
selection on raster layers.
You can make a copy of your map, and remove one layer at the time until the
map works. Then you know which layer is generating the error.



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