Unfortunately "Arc-Aligned" Text cannot be directly processed by EasyGerb. To resolve the issue, please explode the Arc Aligned text (using AutoCAD command "explode") and then run the conversion again.
Note: Please keep in mind, Gerber data is just an ascii text file containing X/Y coordinates. During every conversion EasyGerb must decompose (i.e explode) all selected entities to simple X/Y coordinates so it may be outputted as gerber data. EasyGerb does a very good job handling most 2D AutoCAD entities, however some complex objects such Arc-Aligned Text, Splines, and many 3D entities are too complex for EasyGerb and must be exploded to basic entities before conversion.
Here's our recommend AutoCAD to Gerber conversion guidelines:
http://www.numericalinnovations.com/blogs/news/6116174-dxf-dwg-to-gerber-conversion-guidelines
Simon Garrison
The only problem I am having is the conversion of certain text in the file. When converting, it gives the error "ARCALIGNEDTEXT cannot be Processed." I have attached the file for your reference.