OperatorException Error Band must be sourceless

I was trying to calculate depth invariant indices from a Sentinel-2 NetCDF-CF format file (a result of atmospheric correction using Polymer), below is the picture:

Maybe the following log would explain my situation better.
Is there any workaround for this?r

org.esa.snap.core.gpf.OperatorException: Raster ‘longitude’ must be sourceless, since it is a computed target
at org.esa.snap.core.gpf.pointop.PointOperator$AbstractSampleConfigurer.addRaster(PointOperator.java:398)
at org.esa.snap.core.gpf.pointop.PointOperator$AbstractSampleConfigurer.addRaster(PointOperator.java:389)
at org.esa.snap.core.gpf.pointop.PointOperator$TargetSampleConfigurerImpl.defineSample(PointOperator.java:539)
at org.esa.sen2coral.algorithms.DepthInvariantIndicesOp.configureTargetSamples(DepthInvariantIndicesOp.java:163)
at org.esa.snap.core.gpf.pointop.PointOperator.initialize(PointOperator.java:96)
at org.esa.snap.core.gpf.internal.OperatorContext.initializeOperator(OperatorContext.java:528)
at org.esa.snap.core.gpf.internal.OperatorContext.getTargetProduct(OperatorContext.java:298)
at org.esa.snap.core.gpf.Operator.getTargetProduct(Operator.java:385)
at org.esa.snap.core.gpf.GPF.createProductNS(GPF.java:333)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:308)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:287)
at org.esa.snap.core.gpf.ui.DefaultSingleTargetProductDialog.createTargetProduct(DefaultSingleTargetProductDialog.java:138)
[catch] at org.esa.snap.core.gpf.ui.SingleTargetProductDialog.onApply(SingleTargetProductDialog.java:131)
at org.esa.snap.ui.AbstractDialog.lambda$initUI$6(AbstractDialog.java:519)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6539)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

SOLVED: The product must be reprojected first provided in SNAP, perhaps the potential source of the issue was POLYMER’s interpretation of geocoordinates