'ToInt32', 'ToSingle', 'ToChar', 'ToDouble' does not exist in 'Convert' namespace

[BhaumikSurani]

Describe the bug

After importing "BranchUnityWrapper.unitypackage" start getting errors

Assets/Branch/BranchLinkProperties.cs(88,21): error CS0234: The type or namespace name 'ToInt32' does not exist in the namespace 'Convert' (are you missing an assembly reference?)
Assets/Branch/MiniJSON.cs(509,23): error CS0234: The type or namespace name 'ToInt32' does not exist in the namespace 'Convert' (are you missing an assembly reference?)
Assets/Branch/MiniJSON.cs(540,21): error CS0234: The type or namespace name 'ToDouble' does not exist in the namespace 'Convert' (are you missing an assembly reference?)
Assets/Branch/BranchContentMetadata.cs(348,15): error CS0234: The type or namespace name 'ToSingle' does not exist in the namespace 'Convert' (are you missing an assembly reference?)
Assets/Branch/MiniJSON.cs(316,13): error CS0234: The type or namespace name 'ToChar' does not exist in the namespace 'Convert' (are you missing an assembly reference?)

Steps to reproduce

1. Download "BranchUnityWrapper.unitypackage" from https://github.com/BranchMetrics/unity-branch-deep-linking-attribution/releases/download/2.0.0/BranchUnityWrapper.unitypackage
2. Double click and install

Expected behavior

Not Display any error in imported files

SDK Version

2.0.0

Unity Version

2022.3.29f1

Make and Model

Unity Editor Simulator Apple iPhone 11

OS

Unity Editor OS

Additional Information/Context

In Player Setting Using ".NET Standard 2.1"