Issue While Registration of Self Hosted Integration Runtime

Facing issue while deploying the azuredeploy.json file from "https://github.com/Azure/azure-quickstart-templates/tree/master/101-vms-with-selfhost-integration-runtime".

The Template is able to create all the infrastructures but facing issue while running gatewayInstall.ps1 script which is called from IRInstall.json template file.

The issue is occurring during gateway registration with the SelfHostedIntegration Runtime in ADF. Please find the error log.

**{
"status": "Failed",
"error": {
"code": "ResourceDeploymentFailure",
"message": "The resource operation completed with terminal provisioning state 'Failed'.",
"details": [
{
"code": "VMExtensionProvisioningError",
"message": "VM has reported a failure when processing extension 'vm0-VMIRinstallGW'. Error message: \"Command execution finished, but failed because it returned a non-zero exit code of: '1'. The command had an error output of: 'At C:\\Packages\\Plugins\\Microsoft.Compute.CustomScriptExtension\\1.10.8\\Downloads\r\n\\0\\gatewayInstall.ps1:144 char:21\r\n+ Sign up\r\n+ ~\r\nThe ampersand (&) character is not allowed. The & operator is reserved for \r\nfuture...' For more information, check the instance view by executing Get-AzVmssVm or Get-AzVm (https://aka.ms/GetAzVm). These commands can be executed using CloudShell (https://aka.ms/CloudShell)\"\r\n\r\nMore information on troubleshooting is available at https://aka.ms/VMExtensionCSEWindowsTroubleshoot "
}
]
}
}**

Start with azuredeploy.json and IRInstall.json in the 101-vms-with-selfhost-integration-runtime template, then inspect gatewayInstall.ps1 around line 144. Reproduce the deployment and review the VM extension output for the PowerShell parsing failure. Done means the template deploys successfully and the self-hosted integration runtime registers in ADF.

Written by the indexing model from the issue text.