eiffel: type is based on unknown class (even when visible into libraries) - include-path

Question

Trying to include a library I just created I'm unable to have the Class available even if it appears into the libraries on the group view of eiffel studio
../thirdparty/moon_time/sunriset_lib.ecf
<?xml version="1.0" encoding="ISO-8859-1"?>
<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-21-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-21-0 http://www.eiffel.com/developers/xml/configuration-1-21-0.xsd" name="sunriset" uuid="6E7AC452-4513-4BB4-9F04-A1ABCBCC1BE3" library_target="sunriset">
<target name="sunriset">
<root all_classes="true"/>
<file_rule>
<exclude>/CVS$</exclude>
<exclude>/EIFGENs$</exclude>
<exclude>/\.git$</exclude>
<exclude>/\.svn$</exclude>
</file_rule>
<option warning="warning" manifest_array_type="mismatch_warning">
<assertions precondition="true" postcondition="true" check="true" invariant="true" loop="true" supplier_precondition="true"/>
</option>
<setting name="console_application" value="true"/>
<setting name="total_order_on_reals" value="false"/>
<setting name="dead_code_removal" value="feature"/>
<library name="base" location="$ISE_LIBRARY\library\base\base.ecf"/>
<library name="time" location="$ISE_LIBRARY\library\time\time.ecf"/>
<cluster name="src" location=".\src\" recursive="true"/>
</target>
<target name="sunriset_tests" extends="sunriset">
<root class="APPLICATION" feature="make"/>
<option warning="warning">
<assertions precondition="true" postcondition="true" check="true" invariant="true" loop="true" supplier_precondition="true"/>
</option>
<setting name="console_application" value="true"/>
<library name="testing" location="$ISE_LIBRARY\library\testing\testing.ecf"/>
<cluster name="test" location=".\testing\" recursive="true"/>
</target>
</system>
main-raspi-app.ecf
<?xml version="1.0" encoding="ISO-8859-1"?>
<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-21-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-21-0 http://www.eiffel.com/developers/xml/configuration-1-21-0.xsd" name="main_raspi_app" uuid="CC76847A-99AA-4FAE-A27F-CFBA76A914AF">
<target name="raspi_data_visitor">
<root class="RASPI_DATA_VISITOR_APP" feature="make"/>
<file_rule>
<exclude>/CVS$</exclude>
<exclude>/EIFGENs$</exclude>
<exclude>/\.git$</exclude>
<exclude>/\.svn$</exclude>
</file_rule>
<option warning="warning" manifest_array_type="mismatch_warning">
<assertions precondition="true" postcondition="true" check="true" invariant="true" loop="true" supplier_precondition="true"/>
</option>
<setting name="console_application" value="true"/>
<setting name="executable_name" value="raspi_data_visitor"/>
<setting name="dead_code_removal" value="feature"/>
<library name="base" location="$ISE_LIBRARY\library\base\base.ecf"/>
<library name="json" location=".\..\thirdparty\json\library\json.ecf" readonly="false"/>
<library name="sit-platform" location=".\..\sit-platform\sit_platform_lib.ecf" readonly="false"/>
<library name="sunriset" location=".\..\thirdparty\moon_time\sunriset_lib.ecf" readonly="false"/>
<cluster name="src" location=".\src\" recursive="true"/>
</target>
<target name="raspi_data_generator" extends="raspi_data_visitor">
<root class="RASPI_DATA_GENERATOR_APP" feature="make"/>
</target>
</system>

Answer 1

Got it!
As the SOLAR_NRJ_ADVISOR class is part of the sit-platform library, I had to include the library into the sit-platform library instead of the current project