Invoke-Tool error while executing powershell script

Hi,

I am getting the below error while executing my powershell script to run SOAPUI task in VSTS, can anyone help:

 Invoke-Tool : The term 'Invoke-Tool' is not recognized as the name of a cmdlet, function, script file, or operable
program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
 At D:\a\1\s\SOAPUI.ps1:59 char:1
Invoke-Tool -Path $soapUiExe -Arguments $args
  CategoryInfo : ObjectNotFound: (Invoke-Tool:String) [], CommandNotFoundException
 FullyQualifiedErrorId : CommandNotFoundException