YCH Dev-depends on System.Runtime.CompilerServices.Unsafe, and the versions don’t match

depends on System.Runtime.CompilerServices.Unsafe, and the versions don’t match

Author: ych

### depends on System.Runtime.CompilerServices.Unsafe, and the versions don’t match
#### for example
```
Could not load file or assembly 
'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1'
The located assembly's manifest definition does not match the assembly reference.
(HRESULT: 0x80131040)
```
This usually happens because System.Memory depends on System.Runtime.CompilerServices.Unsafe, and the versions don’t match.

#### 1. Most common cause

Your project references System.Memory, which internally requires System.Runtime.CompilerServices.Unsafe.

Example dependency chain:
```
Some Library
   ↓
System.Memory (4.5.x)
   ↓
System.Runtime.CompilerServices.Unsafe
```
If your project loads a different version than the one expected (for example 6.0 instead of 4.0.4.1), .NET Framework throws this error.

#### 2. Recommended stable versions (.NET Framework)

If your project is .NET Framework 4.7.2 / 4.8, the safest versions are:

Packag|Version
-|-
System.Memory|4.5.5
System.Runtime.CompilerServices.Unsafe|6.0.0

Install them via NuGet:
```
Install-Package System.Memory -Version 4.5.5
Install-Package System.Runtime.CompilerServices.Unsafe -Version 6.0.0
```
#### 3. Add bindingRedirect (important)

In App.config or Web.config:
```
<runtime>
  <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

</assemblyBinding>
</runtime>
```
This tells the CLR to redirect all older versions to the installed version.

depends on System.Runtime.CompilerServices.Unsafe, and the versions don’t match

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