C # Connection SQLite appears: mixed-mode assemblies are generated for the "v2.0.50727" version of the runtime and cannot be loaded in the 4.0 runtime without additional information being configured. Solutions for

C # connection SQLite appears:

Mixed-mode assemblies are generated for the "v2.0.50727" version of the runtime and cannot be loaded in the 4.0 runtime without additional information being configured. Solutions for

C # Connect SQLite database code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.ComponentModel;4 usingSystem.Data;5 usingSystem.Data.SQLite;6 usingSystem.Drawing;7 usingSystem.Linq;8 usingSystem.Text;9 usingSystem.Threading.Tasks;Ten usingSystem.Windows.Forms; One  A namespaceT_w_sqlite - { -      Public Partial classForm1:form the     { -          Public Staticsqliteconnection sqlconn; -          Public Static stringConnectionString ="Data source=e://test.db3; Pooling=true; Failifmissing=true";//Store A common database connection string -  +          Public StaticString startsqlconn () -         { +Sqlconn =Newsqliteconnection (ConnectionString); A             Try at             { - Sqlconn.open (); -             } -             Catch -             { -Sqlconn =NULL; in             } -             return "You Test success!"; to         } +          PublicForm1 () -         { the InitializeComponent ();

 *             Lable.text = startsqlconn ();  $ Panax Notoginseng         }    

Workaround:

Solution find the app. Config file

　　

Under the configuration node of App. Config, add:

The original is:

1 <?xml version="1.0" encoding="utf-8" ?>  2 <configuration>3     4         <supportedruntime version="v4.0  " sku=". netframework,version=v4.5" />5     </startup>6 </ Configuration>

Modified to:

1<?xml version="1.0"encoding="Utf-8"?>2<configuration>3<startup uselegacyv2runtimeactivationpolicy="true">4<supportedruntime version="v4.0"sku=". netframework,version=v4.5"/>5</startup>6</configuration>

Can solve the above problems.

by Hruinger.

C # Connection SQLite appears: mixed-mode assemblies are generated for the "v2.0.50727" version of the runtime and cannot be loaded in the 4.0 runtime without additional information being configured. Solutions for