gpt -e ./StatisticGraph.xml -Ssource=$outfile_bndry -Pout_stats='test.rst' INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters SEVERE: org.esa.s2tbx.dataio.gdal.activator.GDALPlugInActivator: The environment variable LD_LIBRARY_PATH is not set. It must contain the current folder '.'. java.lang.IllegalArgumentException: The environment variable LD_LIBRARY_PATH is not set. It must contain the current folder '.'. at org.esa.s2tbx.dataio.gdal.activator.GDALDistributionInstaller.processInstalledLinuxDistribution(GDALDistributionInstaller.java:109) at org.esa.s2tbx.dataio.gdal.activator.GDALDistributionInstaller.install(GDALDistributionInstaller.java:82) at org.esa.s2tbx.dataio.gdal.activator.GDALPlugInActivator.start(GDALPlugInActivator.java:22) at org.esa.snap.runtime.Engine.informActivators(Engine.java:222) at org.esa.snap.runtime.Engine.lambda$start$0(Engine.java:121) at org.esa.snap.runtime.Engine.runClientCode(Engine.java:189) at org.esa.snap.runtime.Engine.start(Engine.java:121) at org.esa.snap.runtime.Engine.start(Engine.java:90) at org.esa.snap.runtime.Launcher.run(Launcher.java:51) at org.esa.snap.runtime.Launcher.main(Launcher.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:62) at com.install4j.runtime.launcher.UnixLauncher.main(UnixLauncher.java:57) Executing processing graph done. org.esa.snap.core.gpf.graph.GraphException: [NodeId: StatNode] Configuration must contain either a source band name or an expression. at org.esa.snap.core.gpf.graph.NodeContext.initTargetProduct(NodeContext.java:79) at org.esa.snap.core.gpf.graph.GraphContext.initNodeContext(GraphContext.java:195) at org.esa.snap.core.gpf.graph.GraphContext.initOutput(GraphContext.java:162) at org.esa.snap.core.gpf.graph.GraphContext.(GraphContext.java:91) at org.esa.snap.core.gpf.graph.GraphContext.(GraphContext.java:64) at org.esa.snap.core.gpf.graph.GraphProcessor.executeGraph(GraphProcessor.java:130) at org.esa.snap.core.gpf.main.DefaultCommandLineContext.executeGraph(DefaultCommandLineContext.java:86) at org.esa.snap.core.gpf.main.CommandLineTool.executeGraph(CommandLineTool.java:534) at org.esa.snap.core.gpf.main.CommandLineTool.runGraph(CommandLineTool.java:388) at org.esa.snap.core.gpf.main.CommandLineTool.runGraphOrOperator(CommandLineTool.java:287) at org.esa.snap.core.gpf.main.CommandLineTool.run(CommandLineTool.java:188) at org.esa.snap.core.gpf.main.CommandLineTool.run(CommandLineTool.java:121) at org.esa.snap.core.gpf.main.GPT.run(GPT.java:54) at org.esa.snap.core.gpf.main.GPT.main(GPT.java:34) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.esa.snap.runtime.Launcher.lambda$run$0(Launcher.java:55) at org.esa.snap.runtime.Engine.runClientCode(Engine.java:189) at org.esa.snap.runtime.Launcher.run(Launcher.java:51) at org.esa.snap.runtime.Launcher.main(Launcher.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:62) at com.install4j.runtime.launcher.UnixLauncher.main(UnixLauncher.java:57) Caused by: org.esa.snap.core.gpf.OperatorException: Configuration must contain either a source band name or an expression. at org.esa.snap.statistics.StatisticsOp.validateInput(StatisticsOp.java:399) at org.esa.snap.statistics.StatisticsOp.initialize(StatisticsOp.java:163) at org.esa.snap.core.gpf.internal.OperatorContext.initializeOperator(OperatorContext.java:486) at org.esa.snap.core.gpf.internal.OperatorContext.getTargetProduct(OperatorContext.java:273) at org.esa.snap.core.gpf.Operator.getTargetProduct(Operator.java:387) at org.esa.snap.core.gpf.graph.NodeContext.initTargetProduct(NodeContext.java:77) ... 27 more Error: [NodeId: StatNode] Configuration must contain either a source band name or an expression.