ExtensionManifest: Wrong symbol '[' in version: Must be a number

I created a InDesign CC 2014 App Extension on CEP 5.2

manifest.xml as following

--

<?xml version="1.0" encoding="UTF-8"?>

<ExtensionManifest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Version="5.0" ExtensionBundleId="com.tester.testapp" ExtensionBundleVersion="1.0">

  <ExtensionList>

    <Extension Id="com.tester.testapp.panel" Version="1.0" />

  </ExtensionList>

  <ExecutionEnvironment>

    <HostList>

      <Host Name="IDSN" Version="10.0" />

    </HostList>

    <LocaleList>

      <Locale Code="All" />

    </LocaleList>

    <RequiredRuntimeList>

      <RequiredRuntime Name="CSXS" Version="5.2" />

    </RequiredRuntimeList>

  </ExecutionEnvironment>

  <DispatchInfoList>

    <Extension Id="com.tester.testapp.panel">

      <DispatchInfo>

        <Resources>

          <MainPath>./index.html</MainPath>

          <CEFCommandLine />

        </Resources>

        <Lifecycle>

          <AutoVisible>true</AutoVisible>

        </Lifecycle>

        <UI>

          <Type>Panel</Type>

          <Menu>TestApp</Menu>

          <Geometry>

            <Size>

              <Height>500</Height>

              <Width>400</Width>

            </Size>

          </Geometry>

          <Icons />

        </UI>

      </DispatchInfo>

    </Extension>

  </DispatchInfoList>

</ExtensionManifest>

--

After signed and imported with Extension Manager, Indesign cannot load this extension

and log file ($HOME/Library/Logs/CSXS/csxs5-IDSN.log) says:

2014-10-13 11:47:26 : INFO  PlugPlug version : 5.2.0.49

2014-10-13 11:47:26 : INFO  LogLevel : 1

2014-10-13 11:47:26 : ERROR An illegal argument occurred while creating the ExtensionManifest: Wrong symbol '[' in version: Must be a number

Please help to solve it, thank a lot