Description

To avoid error "Can't find the storage provider LevelDBStore (Parameter 'storageProvider')" which happend when LevelDBStore are not located in Plugins. This PR try to auto-install storage prover if it's not available at method start of MainService.

It should be noted that if you publish locally neo-cli, plugins are removedand and try to run then the storage provider auto-install can be the released one and can be different from local version, showing up an error like "Unhandled exception. System.TypeLoadException: Method 'add_OnNewSnapshot' in type 'Neo.Plugins.Storage.Store' from assembly 'LevelDBStore, Version=3.8.1.0, Culture=neutral, PublicKeyToken=null' does not have an implementation." in case something is different between both versions.

Change Log

• Modify MainService.cs

Fixes #4270

Type of change

• Optimization (the change is only an optimization)
• Style (the change is only a code style for better maintenance or standard purpose)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Unit Testing
• Run Application
• Local Computer Tests
• No Testing

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules