Installing ZXP in CC 2018 MAC

Dear Friends,

    I want to create a CC 2018 plugin With User interface in Mac OS  1013.1.

    I developed the User Interface Using HTML5 and jsp.

    I downloaded the CC Extension Manager from this link https://www.adobe.com/exchange/em_download/ and Installed.

    I try to install my extension(ZXP) using CC Extension Manager.

    The Extension is not installed.

    The Extension Manager shows an Error Message.please see the below Image.

    Please see the my manifest.xml file below

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

<ExtensionManifest Version="5.0" ExtensionBundleId="com.example.SampleUI" ExtensionBundleVersion="1.0.0"

  ExtensionBundleName="SampleUI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

  <ExtensionList>

  <Extension Id="com.example.SampleUI.extension1" Version="1.0" />

  </ExtensionList>

  <ExecutionEnvironment>

  <HostList>

  <Host Name="ILST" Version="22" />

  </HostList>

  <LocaleList>

  <Locale Code="All" />

  </LocaleList>

  <RequiredRuntimeList>

  <RequiredRuntime Name="CSXS" Version="5.0" />

  </RequiredRuntimeList>

  </ExecutionEnvironment>

  <DispatchInfoList>

  <Extension Id="com.example.SampleUI.extension1">

  <DispatchInfo >

  <Resources>

  <MainPath>./index.html</MainPath>

  <ScriptPath>./SampleUI.jsx</ScriptPath>

  </Resources>

  <Lifecycle>

  <AutoVisible>true</AutoVisible>

  </Lifecycle>

  <UI>

  <Type>Panel</Type>

  <Menu>SampleUI</Menu>

  <Geometry>

  <Size>

  <Height>200</Height>

  <Width>200</Width>

  </Size>

  </Geometry>

  </UI>

  </DispatchInfo>

  </Extension>

  </DispatchInfoList>

</ExtensionManifest>

For Windows Machine I copied the ExmanCmd files to ExtensionManager path.Is it Necessary do the Same in Mac machine.If it is necessary then please give the download link for ExmanCmadMac and Which location in my Mac Machine it is to be Copied.

Please give me your Suggestion to solve this problem.

Thank you friends,

Selvakkani