I used Sencha Command to build the example app, I called it Testbuild. I then tried issuing the command 'sencha app build' and it got so far but then there was an error. In the testbuild's app.json file I put this:
Code:
{
    /**
     * The application's namespace, used by Sencha Command to generate classes
     */
    "name": "Testbuild",


    /**
     * The file path to this application's front HTML document, relative to this app.json file
     */
    "indexHtmlPath": "http://localhost:8888/Testbuild/",


    /**
     * The absolute URL to this application in development environment, i.e: the URL to run this application
     * on your web browser during development, e.g: "http://localhost/myapp/index.html".
     *
     * This value is needed when build to resolve your application's dependencies if it requires server-side resources
     * that are not accessible via file system protocol.
     */
    "url": "http://localhost:8888/Testbuild/index.html"
etc.


It seems to be an error relating to ant. I am running on a Mac, 10.8.2:

Code:
Macbook-Pro-3:Testbuild Macintosh$ sencha app build
Sencha Cmd v3.0.2.288
[INF]        
[INF]        init-properties:
[INF]        
[INF]        init-sencha-command:
[INF]        
[INF]        init:
[INF]        
[INF]        -before-app-build:
[INF]        
[INF]        app-build-impl:
[INF]        
[INF]        production:
[INF]        
[INF]        -before-init-local:
[INF]        
[INF]        -init-local:
[INF]        
[INF]        -after-init-local:
[INF]        
[INF]        init-local:
[INF]        
[INF]        find-cmd:
[INF]        
[INF]        -before-init:
[INF]        
[INF]        -init:
[INF]        
[INF]        -after-init:
[INF]        
[INF]        init:
[INF]        
[INF]        -before-build:
[INF]        
[INF]        sass:
[INF]        
[INF]        -before-sass:
[INF]        
[INF]        -sass:
[INF]        [shellscript] identical ../css/app.css 
[INF]        
[INF]        -after-sass:
[INF]        
[INF]        page:
[INF]        
[INF]        -before-page:
[INF]        
[INF]        -page:
[INF]        building application
[ERR]        
[ERR]        BUILD FAILED
[ERR]        com.sencha.exceptions.BasicException: The following error occurred while executing this line:
[ERR]        /Applications/MAMP/htdocs/Testbuild/.sencha/app/build-impl.xml:137: com.sencha.exceptions.ExScript: SyntaxError: missing '}' after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
[ERR]           readConfig (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js:373)
[ERR]           runAppBuild (x-app-build:9)
[ERR]           [anonymous] (x-app-build:545)
[ERR]           x_app_build (x-app-build:543)
[ERR]           <script> (anonymous:1)
[ERR]            at com.sencha.exceptions.BasicException.wrap(BasicException.java:43)
[ERR]            at com.sencha.cli.Command.dispatch(Command.java:104)
[ERR]            at com.sencha.cli.Commands.dispatch(Commands.java:49)
[ERR]            at com.sencha.cli.AbstractCommand.dispatch(AbstractCommand.java:182)
[ERR]            at com.sencha.ant.SenchaCommandTask.doExecute(SenchaCommandTask.java:69)
[ERR]            at com.sencha.ant.BaseAntTask.execute(BaseAntTask.java:22)
[ERR]            at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERR]            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERR]            at java.lang.reflect.Method.invoke(Method.java:597)
[ERR]            at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[ERR]            at org.apache.tools.ant.Task.perform(Task.java:348)
[ERR]            at org.apache.tools.ant.Target.execute(Target.java:392)
[ERR]            at org.apache.tools.ant.Target.performTasks(Target.java:413)
[ERR]            at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
[ERR]            at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
[ERR]            at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[ERR]            at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
[ERR]            at com.sencha.ant.AntRunner.run(AntRunner.java:156)
[ERR]            at com.sencha.ant.AntRunner.run(AntRunner.java:72)
[ERR]            at com.sencha.command.BasePluginCommands$BasePluginCommand.run(BasePluginCommands.java:94)
[ERR]            at com.sencha.command.BasePluginCommands$BasePluginCommand.run(BasePluginCommands.java:98)
[ERR]            at com.sencha.command.BasePluginCommands$BaseNamePathCommand.run(BasePluginCommands.java:142)
[ERR]            at com.sencha.command.app.AppCommands$BuildCommand.execute(AppCommands.java:116)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERR]            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERR]            at java.lang.reflect.Method.invoke(Method.java:597)
[ERR]            at com.sencha.cli.Command.dispatch(Command.java:78)
[ERR]            at com.sencha.cli.Commands.dispatch(Commands.java:49)
[ERR]            at com.sencha.cli.Commands.dispatch(Commands.java:49)
[ERR]            at com.sencha.command.Sencha.main(Sencha.java:71)
[ERR]        Caused by: /Applications/MAMP/htdocs/Testbuild/.sencha/app/build-impl.xml:144: The following error occurred while executing this line:
[ERR]        /Applications/MAMP/htdocs/Testbuild/.sencha/app/build-impl.xml:137: com.sencha.exceptions.ExScript: SyntaxError: missing '}' after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
[ERR]           readConfig (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js:373)
[ERR]           runAppBuild (x-app-build:9)
[ERR]           [anonymous] (x-app-build:545)
[ERR]           x_app_build (x-app-build:543)
[ERR]           <script> (anonymous:1)
[ERR]            at org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:551)
[ERR]            at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:444)
[ERR]            at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:105)
[ERR]            at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
[ERR]            at sun.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
[ERR]            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERR]            at java.lang.reflect.Method.invoke(Method.java:597)
[ERR]            at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[ERR]            at org.apache.tools.ant.Task.perform(Task.java:348)
[ERR]            at org.apache.tools.ant.Target.execute(Target.java:392)
[ERR]            at org.apache.tools.ant.Target.performTasks(Target.java:413)
[ERR]            at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
[ERR]            at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
[ERR]            at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[ERR]            at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
[ERR]            at com.sencha.ant.AntRunner.run(AntRunner.java:156)
[ERR]            at com.sencha.ant.AntRunner.run(AntRunner.java:80)
[ERR]            at com.sencha.command.ant.AntCommand.execute(AntCommand.java:75)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERR]            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERR]            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERR]            at java.lang.reflect.Method.invoke(Method.java:597)
[ERR]            at com.sencha.cli.Command.dispatch(Command.java:78)
[ERR]            ... 31 more
[ERR]        Caused by: /Applications/MAMP/htdocs/Testbuild/.sencha/app/build-impl.xml:137: com.sencha.exceptions.ExScript: SyntaxError: missing '}' after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
[ERR]           readConfig (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js:373)
[ERR]           runAppBuild (x-app-build:9)
[ERR]           [anonymous] (x-app-build:545)
[ERR]           x_app_build (x-app-build:543)
[ERR]           <script> (anonymous:1)
[ERR]            at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:116)
[ERR]            at org.apache.tools.ant.Task.perform(Task.java:348)
[ERR]            at org.apache.tools.ant.Target.execute(Target.java:392)
[ERR]            at org.apache.tools.ant.Target.performTasks(Target.java:413)
[ERR]            at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
[ERR]            at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
[ERR]            at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
[ERR]            at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:442)
[ERR]            ... 52 more
[ERR]        Caused by: com.sencha.exceptions.ExScript: SyntaxError: missing '}' after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
[ERR]           readConfig (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js:373)
[ERR]           runAppBuild (x-app-build:9)
[ERR]           [anonymous] (x-app-build:545)
[ERR]           x_app_build (x-app-build:543)
[ERR]           <script> (anonymous:1)
[ERR]            at com.sencha.util.JavaScriptHost.eval(JavaScriptHost.java:74)
[ERR]            at com.sencha.ant.ScriptTask.executeScript(ScriptTask.java:92)
[ERR]            at org.apache.tools.ant.taskdefs.optional.script.ScriptDefBase.execute(ScriptDefBase.java:50)
[ERR]            at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
[ERR]            at sun.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
[ERR]            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERR]            at java.lang.reflect.Method.invoke(Method.java:597)
[ERR]            at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[ERR]            ... 59 more
[ERR]        Caused by: org.mozilla.javascript.EcmaError: SyntaxError: missing '}' after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
[ERR]            at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3687)
[ERR]            at org.mozilla.javascript.DefaultErrorReporter.error(DefaultErrorReporter.java:57)
[ERR]            at org.mozilla.javascript.Parser.addError(Parser.java:188)
[ERR]            at org.mozilla.javascript.Parser.addError(Parser.java:166)
[ERR]            at org.mozilla.javascript.Parser.reportError(Parser.java:223)
[ERR]            at org.mozilla.javascript.Parser.reportError(Parser.java:217)
[ERR]            at org.mozilla.javascript.Parser.mustMatchToken(Parser.java:388)
[ERR]            at org.mozilla.javascript.Parser.mustMatchToken(Parser.java:378)
[ERR]            at org.mozilla.javascript.Parser.objectLiteral(Parser.java:3246)
[ERR]            at org.mozilla.javascript.Parser.primaryExpr(Parser.java:2767)
[ERR]            at org.mozilla.javascript.Parser.memberExpr(Parser.java:2406)
[ERR]            at org.mozilla.javascript.Parser.unaryExpr(Parser.java:2304)
[ERR]            at org.mozilla.javascript.Parser.mulExpr(Parser.java:2229)
[ERR]            at org.mozilla.javascript.Parser.addExpr(Parser.java:2213)
[ERR]            at org.mozilla.javascript.Parser.shiftExpr(Parser.java:2194)
[ERR]            at org.mozilla.javascript.Parser.relExpr(Parser.java:2169)
[ERR]            at org.mozilla.javascript.Parser.eqExpr(Parser.java:2141)
[ERR]            at org.mozilla.javascript.Parser.bitAndExpr(Parser.java:2130)
[ERR]            at org.
[ERR]        mozilla.javascript.Parser.bitXorExpr(Parser.java:2119)
[ERR]            at org.mozilla.javascript.Parser.bitOrExpr(Parser.java:2108)
[ERR]            at org.mozilla.javascript.Parser.andExpr(Parser.java:2097)
[ERR]            at org.mozilla.javascript.Parser.orExpr(Parser.java:2086)
[ERR]            at org.mozilla.javascript.Parser.condExpr(Parser.java:2062)
[ERR]            at org.mozilla.javascript.Parser.assignExpr(Parser.java:2033)
[ERR]            at org.mozilla.javascript.Parser.expr(Parser.java:2012)
[ERR]            at org.mozilla.javascript.Parser.parenExpr(Parser.java:2839)
[ERR]            at org.mozilla.javascript.Parser.primaryExpr(Parser.java:2773)
[ERR]            at org.mozilla.javascript.Parser.memberExpr(Parser.java:2406)
[ERR]            at org.mozilla.javascript.Parser.unaryExpr(Parser.java:2304)
[ERR]            at org.mozilla.javascript.Parser.mulExpr(Parser.java:2229)
[ERR]            at org.mozilla.javascript.Parser.addExpr(Parser.java:2213)
[ERR]            at org.mozilla.javascript.Parser.shiftExpr(Parser.java:2194)
[ERR]            at org.mozilla.javascript.Parser.relExpr(Parser.java:2169)
[ERR]            at org.mozilla.javascript.Parser.eqExpr(Parser.java:2141)
[ERR]            at org.mozilla.javascript.Parser.bitAndExpr(Parser.java:2130)
[ERR]            at org.mozilla.javascript.Parser.bitXorExpr(Parser.java:2119)
[ERR]            at org.mozilla.javascript.Parser.bitOrExpr(Parser.java:2108)
[ERR]            at org.mozilla.javascript.Parser.andExpr(Parser.java:2097)
[ERR]            at org.mozilla.javascript.Parser.orExpr(Parser.java:2086)
[ERR]            at org.mozilla.javascript.Parser.condExpr(Parser.java:2062)
[ERR]            at org.mozilla.javascript.Parser.assignExpr(Parser.java:2033)
[ERR]            at org.mozilla.javascript.Parser.variables(Parser.java:1870)
[ERR]            at org.mozilla.javascript.Parser.statementHelper(Parser.java:986)
[ERR]            at org.mozilla.javascript.Parser.statement(Parser.java:901)
[ERR]            at org.mozilla.javascript.Parser.parse(Parser.java:540)
[ERR]            at org.mozilla.javascript.Parser.parse(Parser.java:478)
[ERR]            at org.mozilla.javascript.Context.compileImpl(Context.java:2348)
[ERR]            at org.mozilla.javascript.Context.compileString(Context.java:1335)
[ERR]            at org.mozilla.javascript.ScriptRuntime.evalSpecial(ScriptRuntime.java:2504)
[ERR]            at org.mozilla.javascript.ScriptRuntime.callSpecial(ScriptRuntime.java:2360)
[ERR]            at org.mozilla.javascript.Interpreter.doCallSpecial(Interpreter.java:2279)
[ERR]            at org.mozilla.javascript.Interpreter.interpretLoop(Interpreter.java:1344)
[ERR]            at org.mozilla.javascript.Interpreter.interpret(Interpreter.java:815)
[ERR]            at org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:109)
[ERR]            at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
[ERR]            at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3091)
[ERR]            at org.mozilla.javascript.InterpretedFunction.exec(InterpretedFunction.java:120)
[ERR]            at org.mozilla.javascript.Context.evaluateString(Context.java:1079)
[ERR]            at com.sencha.util.JavaScriptHost.eval(JavaScriptHost.java:67)
[ERR]            ... 66 more
[ERR]        
[ERR]        Total time: 14 seconds
[ERR]        com.sencha.exceptions.BasicException: The following error occurred while executing this line:
/Applications/MAMP/htdocs/Testbuild/.sencha/app/build-impl.xml:137: com.sencha.exceptions.ExScript: SyntaxError: missing } after property list (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js#373(eval)#41)
   readConfig (/Users/Macintosh/bin/Sencha/Cmd/3.0.2.288/ant/ant-util.js:373)
   runAppBuild (x-app-build:9)
   [anonymous] (x-app-build:545)
   x_app_build (x-app-build:543)
   <script> (anonymous:1)
I also tried:
Code:
sencha config -prop v2deps=true then app build
...but I get the same error. Anyone know why this might be happening? This is just the test example app so it should build without any problems right?

Thanks