Hi I am facing the below issue while printing my jasper report using Open ERP. In this report I am using sub report as well -: 2017-11-22 16:03:39,659 8764 DEBUG demo openerp.tools.translate: no translation language detected, skipping translation for "'Report Error'" 2017-11-22 16:03:39,659 8764 ERROR demo openerp.service.report: Exception: ('Report Error', 'Failed to invoke method execute in class com.nantic.jasperreports.JasperServer: Java heap space') Traceback (most recent call last): File "/opt/bitnami/apps/openerp/lib/openerp/service/report.py", line 92, in go result, format = openerp.report.render_report(cr, uid, ids, object, datas, context) File "/opt/bitnami/apps/openerp/lib/openerp/report/__init__.py", line 40, in render_report return registry['ir.actions.report.xml'].render_report(cr, uid, ids, name, data, context) File "/opt/bitnami/apps/openerp/lib/openerp/addons/base/ir/ir_actions.py", line 129, in render_report return new_report.create(cr, uid, res_ids, data, context) File "/opt/bitnami/apps/openerp/lib/openerp/extra_addons/jasper_reports/jasper_report.py", line 272, in create return r.execute() File "/opt/bitnami/apps/openerp/lib/openerp/extra_addons/jasper_reports/jasper_report.py", line 155, in execute pages = self.executeReport( dataFile, outputFile, subreportDataFiles, data['report_rml_content_data'] ) File "/opt/bitnami/apps/openerp/lib/openerp/extra_addons/jasper_reports/jasper_report.py", line 241, in executeReport return server.execute( connectionParameters, f.name, outputFile, parameters ) File "/opt/bitnami/apps/openerp/lib/openerp/extra_addons/jasper_reports/JasperReports/JasperServer.py", line 107, in execute raise osv.except_osv(_('Report Error'), e.faultString) except_orm: ('Report Error', 'Failed to invoke method execute in class com.nantic.jasperreports.JasperServer: Java heap space') 2017-11-22 16:03:39,902 8764 ERROR demo openerp.addons.web.http: An exception occured during an http request Traceback (most recent call last): File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/http.py", line 427, in dispatch r = self._call_function(**self.params) File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/http.py", line 174, in _call_function return self.func(*args, **kwargs) File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/http.py", line 1084, in nfunc return checked_call(request.db, args, *kwargs) File "/opt/bitnami/apps/openerp/lib/openerp/service/model.py", line 111, in wrapper return f(dbname, args, *kwargs) File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/http.py", line 1076, in checked_call return func(*a, **kw) File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/controllers/main.py", line 1741, in index request.session.db, request.session.uid, request.session.password, report_id) File "/opt/bitnami/apps/openerp/lib/openerp/addons/web/http.py", line 558, in proxy_method result = openerp.netsvc.dispatch_rpc(self.service_name, method, args) File "/opt/bitnami/apps/openerp/lib/openerp/netsvc.py", line 236, in dispatch_rpc result = dispatch(method, params) File "/opt/bitnami/apps/openerp/lib/openerp/service/report.py", line 34, in dispatch res = fn(db, uid, *params) File "/opt/bitnami/apps/openerp/lib/openerp/service/report.py", line 140, in exp_report_get return _check_report(report_id) File "/opt/bitnami/apps/openerp/lib/openerp/service/report.py", line 118, in _check_report raise openerp.osv.orm.except_orm(exc.message, exc.traceback) except_orm: (u'Report Error', u'Failed to invoke method execute in class com.nantic.jasperreports.JasperServer: Java heap space')