I try to connect reports by subreports. I created 3 separated reports from one *.json file: { "dateRange": { "begin": "2016-09-01", "end": "2016-09-01" }, "customerReportDtos": [ { "customerName": "Customer to find", "projectReportDtos": [ ], "customerWorkedMinutes": 0 }, { "customerName": "Test customer", "projectReportDtos": [ { "projectName": "Test project2", "projectWorkedMinutes": 15, "userReportDtos": [ { "userName": "Jan Kowalski", "userWorkedMinutes": 7 }, { "userName": "Jan Nowak", "userWorkedMinutes": 8 }, { "userName": "Damian Zaleski", "userWorkedMinutes": 0 } ] }, { "projectName": "Test project3", "projectWorkedMinutes": 12, "userReportDtos": [ { "userName": "Jan Kowalski", "userWorkedMinutes": 5 }, { "userName": "Jan Nowak", "userWorkedMinutes": 6 }, { "userName": "Damian Zaleski", "userWorkedMinutes": 1 } ] } ], "customerWorkedMinutes": 27 } ], "sumOfcustomerWorkedMinutes": 27}[/code]First one was CUSTOMER.jrxml (main report)) with chosen node as `customerReportDtos` My CUSTOMER.jrxml <?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 7.2.0.final using JasperReports Library version 6.6.0 --><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="MAIN_REPORT" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="bfabbdd4-774c-4dda-8fff-1b5f8e6d1a47"> <property name="com.jaspersoft.studio.data.defaultdataadapter" value="NOWY_JSON"/> <parameter name="CHILD_LOCATION" class="java.lang.String"/> <queryString language="JSON"> <![CDATA[customerReportDtos]]> </queryString> <field name="customerName" class="java.lang.String"> <property name="net.sf.jasperreports.json.field.expression" value="customerName"/> <fieldDescription><![CDATA[customerName]]></fieldDescription> </field> <field name="projectReportDtos" class="java.lang.String"> <property name="net.sf.jasperreports.json.field.expression" value="projectReportDtos"/> <fieldDescription><![CDATA[projectReportDtos]]></fieldDescription> </field> <field name="customerWorkedMinutes" class="java.lang.Integer"> <property name="net.sf.jasperreports.json.field.expression" value="customerWorkedMinutes"/> <fieldDescription><![CDATA[customerWorkedMinutes]]></fieldDescription> </field> <background> <band splitType="Stretch"/> </background> <title> <band height="79" splitType="Stretch"/> </title> <pageHeader> <band height="35" splitType="Stretch"/> </pageHeader> <columnHeader> <band height="61" splitType="Stretch"> <staticText> <reportElement x="0" y="0" width="278" height="30" uuid="db13493f-5468-4e9a-a52e-83d4c4034770"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="667fa1ca-acfd-4a4b-bdee-fb462d853ce4"/> </reportElement> <text><![CDATA[customerName]]></text> </staticText> <staticText> <reportElement x="278" y="0" width="277" height="30" uuid="59d59bdf-8ef0-47b9-b0ef-7d918ec2ba6e"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="d3a2710e-e350-4311-ac40-3670997716e9"/> </reportElement> <text><![CDATA[customerWorkedMinutes]]></text> </staticText> </band> </columnHeader> <detail> <band height="222" splitType="Stretch"> <textField> <reportElement x="0" y="0" width="278" height="30" uuid="14c49156-ccc9-4afa-afa3-8d1de0e36f2d"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="667fa1ca-acfd-4a4b-bdee-fb462d853ce4"/> </reportElement> <textFieldExpression><![CDATA[$F{customerName}]]></textFieldExpression> </textField> <textField> <reportElement x="278" y="0" width="277" height="30" uuid="e13a6ecf-50ee-4634-830c-ace9c282c0d4"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="d3a2710e-e350-4311-ac40-3670997716e9"/> </reportElement> <textFieldExpression><![CDATA[$F{customerWorkedMinutes}]]></textFieldExpression> </textField> <subreport> <reportElement x="0" y="20" width="570" height="59" uuid="ac54a12b-8022-49a1-bc90-90cff664e3a1"/> <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression> <subreportExpression><![CDATA["PROJECT.jrxml"]]></subreportExpression> </subreport> </band> </detail> <columnFooter> <band height="45" splitType="Stretch"/> </columnFooter> <pageFooter> <band height="54" splitType="Stretch"/> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary></jasperReport>[/code]Second one was PROJECT.jrxml (first subreport) with chosen node as `customerReportDtos.projectReportDtos` My PROJECT.jrxml <?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 7.2.0.final using JasperReports Library version 6.6.0 --><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="new" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="55e0a9d7-656e-4b3e-98b7-da762f908266"> <property name="com.jaspersoft.studio.data.defaultdataadapter" value="NOWY_JSON"/> <queryString language="JSON"> <![CDATA[customerReportDtos.projectReportDtos]]> </queryString> <field name="projectName" class="java.lang.String"> <property name="net.sf.jasperreports.json.field.expression" value="projectName"/> <fieldDescription><![CDATA[projectName]]></fieldDescription> </field> <field name="projectWorkedMinutes" class="java.lang.Integer"> <property name="net.sf.jasperreports.json.field.expression" value="projectWorkedMinutes"/> <fieldDescription><![CDATA[projectWorkedMinutes]]></fieldDescription> </field> <field name="userReportDtos" class="java.lang.String"> <property name="net.sf.jasperreports.json.field.expression" value="userReportDtos"/> <fieldDescription><![CDATA[userReportDtos]]></fieldDescription> </field> <background> <band splitType="Stretch"/> </background> <title> <band height="79" splitType="Stretch"/> </title> <pageHeader> <band height="56" splitType="Stretch"/> </pageHeader> <columnHeader> <band height="61" splitType="Stretch"> <staticText> <reportElement x="-20" y="30" width="300" height="30" uuid="b9421a66-52f4-4834-a505-84e9bc95a943"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="d7b95de3-c8af-4278-9735-3f0a01bde44f"/> </reportElement> <text><![CDATA[projectName]]></text> </staticText> <staticText> <reportElement x="280" y="30" width="295" height="30" uuid="90ee9932-81f6-40d8-8e4c-828c82c9ee92"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="9cd2499f-724b-4155-8e73-a33c6728cefa"/> </reportElement> <text><![CDATA[projectWorkedMinutes]]></text> </staticText> </band> </columnHeader> <detail> <band height="233" splitType="Stretch"> <textField> <reportElement x="-20" y="0" width="300" height="30" uuid="9d0dd2a5-526f-4184-b6f2-54f69c2915d6"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="d7b95de3-c8af-4278-9735-3f0a01bde44f"/> </reportElement> <textFieldExpression><![CDATA[$F{projectName}]]></textFieldExpression> </textField> <textField> <reportElement x="280" y="0" width="295" height="30" uuid="3f2d7322-1f8f-4d40-ba5c-0290fcc3cfae"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="9cd2499f-724b-4155-8e73-a33c6728cefa"/> </reportElement> <textFieldExpression> <![CDATA[$F{projectWorkedMinutes}]]> </textFieldExpression> </textField> <subreport> <reportElement x="-11" y="33" width="561" height="97" uuid="4dd99e2f-e47e-4579-8f97-b3ddbd15cbb2"/> <connectionExpression> <![CDATA[$P{REPORT_CONNECTION}]]> </connectionExpression> <subreportExpression> <![CDATA[in properties>subreport>Expression "USER.jrxml"]]> </subreportExpression> </subreport> </band> </detail> <columnFooter> <band height="45" splitType="Stretch"/> </columnFooter> <pageFooter> <band height="54" splitType="Stretch"/> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary></jasperReport>[/code] and third one was USER.jrxml (subreport for first subreport) with chosen node as `customerReportDtos.projectReportDtos.userReportDtos` and My USER.jrxml <?xml version="1.0" encoding="UTF-8"?><!-- Created with Jaspersoft Studio version 7.2.0.final using JasperReports Library version 6.6.0 --><jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="USER" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="a89f1b2e-859f-4ffc-86a7-c5a15fef4f2b"> <property name="com.jaspersoft.studio.data.defaultdataadapter" value="NOWY_JSON"/> <queryString language="JSON"> <![CDATA[customerReportDtos.projectReportDtos.userReportDtos]]> </queryString> <field name="userName" class="java.lang.String"> <property name="net.sf.jasperreports.json.field.expression" value="userName"/> <fieldDescription><![CDATA[userName]]></fieldDescription> </field> <field name="userWorkedMinutes" class="java.lang.Integer"> <property name="net.sf.jasperreports.json.field.expression" value="userWorkedMinutes"/> <fieldDescription> <![CDATA[userWorkedMinutes]]> </fieldDescription> </field> <background> <band splitType="Stretch"/> </background> <title> <band height="79" splitType="Stretch"/> </title> <pageHeader> <band height="51" splitType="Stretch"/> </pageHeader> <columnHeader> <band height="61" splitType="Stretch"> <staticText> <reportElement x="180" y="30" width="100" height="30" uuid="95e1d9f3-8547-424a-9fe5-00481657be90"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="4f1d70b5-0282-43db-9e40-5cf0b4adaf20"/> </reportElement> <text><![CDATA[userName]]></text> </staticText> <staticText> <reportElement x="290" y="30" width="100" height="30" uuid="f6a5fd03-bf20-4a22-a2e5-36e8ac59c17e"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="0f1b47b1-770b-481f-a8de-49241233f4fe"/> </reportElement> <text><![CDATA[userWorkedMinutes]]></text> </staticText> </band> </columnHeader> <detail> <band height="30" splitType="Stretch"> <textField> <reportElement x="185" y="0" width="100" height="30" uuid="c9e90893-ac2d-43ee-9d40-04f6f74a2088"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="4f1d70b5-0282-43db-9e40-5cf0b4adaf20"/> </reportElement> <textFieldExpression><![CDATA[$F{userName}]]></textFieldExpression> </textField> <textField> <reportElement x="290" y="0" width="100" height="30" uuid="f78c1b1d-9627-449f-a957-ca961e48cabf"> <property name="com.jaspersoft.studio.spreadsheet.connectionID" value="0f1b47b1-770b-481f-a8de-49241233f4fe"/> </reportElement> <textFieldExpression> <![CDATA[$F{userWorkedMinutes}]]> </textFieldExpression> </textField> </band> </detail> <columnFooter> <band height="45" splitType="Stretch"/> </columnFooter> <pageFooter> <band height="54" splitType="Stretch"/> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary></jasperReport>[/code]Separatly they are work fine on preview without adding subreports, but when I wanted to connect them together by subreport. I moved to the main report (CUSTOMER.jrxml) Created subreport and linked to PROJECT by adding in properties>subreport>Expression "PROJECT.jrxml". I moved to subreport (PROJECT.jrxml), and linked to USER by adding in properties>subreport>Expression "USER.jrxml". When I'm trying to check it on preview I get an error called: Exception, if you want to see more information look into details Reason: net.sf.jasperreports.engine.JRException: Resource not found at PROJECT.jrxml (I also tried to change Expression from *.jrxml files to *.jasper files, nothing changed), and I have connection expression as $P{REPORT_CONNECTION}
