Json Error: Missing property name after reference operator

Question

When I try to access the below JSON file from powershell it show the following error: Missing property name after reference operator. Here is my JSON file:

{
    "Vnet": {
        "Service": "VirtualNetwork",
        "Name": "vnetname",
        "ResourceGroupName": "RGname",
        "Location": "Southeast Asia",
        "Address_Prefix": "11.0.0.0/16",
        "No_of_subnets": "1",
        "Subnet": {
            "1": {
                "SubnetName":"sub1",
                "Address_Prefix":"11.0.1.0/24"
            }
        }
    }
}

Here is the simple powershell command

$file = (Get-Content "//filelocation" | Out-String) | ConvertFrom-Json
Write-Output $file.Vnet.Subnet.1.SubnetName

Note: I'm author of the JSON file and I can make any changes to it too if needed.

Yeah,verified in JSON lint too.You have any idea about the error?and how to solve it — vishal
– vishal, Commented Mar 8, 2018 at 10:23

Ansgar Wiechers · Accepted Answer · 2018-03-08 12:30:42Z

7

PowerShell seems to misinterpret the 1 as an index. Put it in quotes (to make clear it's a property name) and the code will work as you expect:

Write-Output $file.Vnet.Subnet.'1'.SubnetName

answered Mar 8, 2018 at 12:30

Ansgar Wiechers

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1 Comment

ThePatelGuy Over a year ago

Happens with any propertyname that starts with a number. E.g. 30DayLogCount

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