java.lang.UnsupportedOperationException: Trying to get a reader from an unknown format.

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    Root Cause Analysis

    1. java.lang.UnsupportedOperationException

      Trying to get a reader from an unknown format.

      at org.geotools.coverage.grid.io.UnknownFormat.getReader()
    2. org.geotools.coverage
      UnknownFormat.getReader
      1. org.geotools.coverage.grid.io.UnknownFormat.getReader(UnknownFormat.java:62)
      1 frame
    3. com.qedrix.map
      Demo1.main
      1. com.qedrix.map.maplotr.Demo1.displayLayers(Demo1.java:127)
      2. com.qedrix.map.maplotr.Demo1.main(Demo1.java:260)
      2 frames