Cannot convert empty null to secure string

[ecspresso]

Steps to reproduce

Import-Module -Name ITGlueAPI as nt_authority\system

Expected behavior

Import the module.

Actual behavior

ConvertTo-SecureString : Cannot bind argument to parameter 'String' because it is null.
At C:\Program Files\WindowsPowerShell\Modules\ITGlueAPI\2.1.0\Internal\ModuleSettings.ps1:33 char:61
+ ... ig.ITGlue_API_key = ConvertTo-SecureString $tmp_config.ITGlue_API_key
+                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [ConvertTo-SecureString], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ConvertToSecureStringCommand

Environment

Please share additional details about your environment. Version information for:

• PowerShell:

Name	Value
PSVersion	5.1.14393.4402
PSEdition	Desktop
PSCompatibleVersions	{1.0, 2.0, 3.0, 4.0...}
BuildVersion	10.0.14393.4402
CLRVersion	4.0.30319.42000
WSManStackVersion	3.0
PSRemotingProtocolVersion	2.3
SerializationVersion	1.1.0.1

• ITGlueAPI: 2.1.0

• Operating System

Name	Value
OsName	Microsoft Windows Server 2016 Standard
OsOperatingSystemSKU	StandardServerEdition
OsArchitecture	64-bit
WindowsBuildLabEx	14393.4402.amd64fre.rs1_release.210426-1725
OsLanguage	en-US
OsMuiLanguages	{en-US}

[ecspresso]

This seems to happen when there is no profile data and $tmp_config.ITGlue_API_key is null. Simply adding -ErrorAction SilentlyContinue should resolve this since you can set a variable to empty data but you cannot convert a null string.

[ecspresso]

ConvertTo-SecureString -String $null -Force -ErrorAction SilentlyContinue generates an error even with SilentlyContinue and that the module is still imported.

[ecspresso]

The issue here was that I managed to run Export-ITGlueModuleSettings with an API key set or in some other way create the config.psd1 file, causing an error when running the import.