I have the following errors when running the app: Design System on Studio Pro 11. I have tried to switch off functionality to auto compile on Eclipse. Also I deleted deployment file but it does not work. C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\Misc.java:5: error: cannot find symbolimport com.mendix.core.conf.RuntimeVersion; ^ symbol: class RuntimeVersion location: package com.mendix.core.conf C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\Misc.java:145: error: cannot find symbol RuntimeVersion runtimeVersion = RuntimeVersion.getInstance(); ^ symbol: class RuntimeVersion location: class Misc C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\Misc.java:145: error: cannot find symbol RuntimeVersion runtimeVersion = RuntimeVersion.getInstance(); ^ symbol: variable RuntimeVersion location: class Misc C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\Misc.java:518: error: cannot find symbol long count = Core.retrieveXPathQueryAggregate(Core.createSystemContext(), "count(" + xpath + ")"); ^ symbol: method retrieveXPathQueryAggregate(IContext,String) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\Misc.java:552: error: cannot find symbol List<IMendixObject> objects = Core.retrieveXPathQuery(c, xpath + (last > 0 ? "[id " + (asc ? "> " : "< ") + last + "]" : ""), ^ symbol: method retrieveXPathQuery(IContext,String,int,int,<anonymous HashMap<String,String>>) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\ORM.java:263: error: cannot find symbol return Core.isSubClassOf(Core.getMetaObject(FileDocument.entityName), object.getMetaObject()); ^ symbol: method isSubClassOf(IMetaObject,IMetaObject) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\ORM.java:290: error: cannot find symbol List<IMendixObject> items = Core.retrieveXPathQuery(c, String.format("//%s[%s = '%s']", entityName, member, value), 1, 0, new HashMap<String, String>()); ^ symbol: method retrieveXPathQuery(IContext,String,int,int,HashMap<String,String>) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\XPath.java:353: error: cannot find symbol return Core.retrieveXPathQueryAggregate(context, "count(" + getXPath() + ")"); ^ symbol: method retrieveXPathQueryAggregate(IContext,String) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\XPath.java:359: error: cannot find symbol List<IMendixObject> result = Core.retrieveXPathQuery(context, getXPath(), 1, offset, sorting); ^ symbol: method retrieveXPathQuery(IContext,String,int,int,LinkedHashMap<String,String>) location: class Core C:\Users \[USERNAME]\Mendix\App-main_2\javasource\communitycommons\XPath.java:544: error: cannot find symbol return Core.retrieveXPathQuery(context, getXPath(), limit, offset, sorting); ^ symbol: method retrieveXPathQuery(IContext,String,int,int,LinkedHashMap<String,String>) location: class Core Error count: 10 FAILURE: Build failed with an exception. * What went wrong:Execution failed for task ':compile'.> Compilation failed; see the compiler error output for details. * Try:> Run with --scan to get full insights. BUILD FAILED in 5s