I have an error with my C# code and MySQL.
Can you help me solve it please ?
Here is my code :
try
{
using (MySqlConnection dbcon = new MySqlConnection(SQLConnectionString))
{
dbcon.Open(); // ERROR HERE
string sql = "SELECT * FROM scp_patreons";
MySqlCommand command = new MySqlCommand();
command = dbcon.CreateCommand();
command.CommandText = sql;
using (MySqlDataReader dr = command.ExecuteReader())
{
while (dr.Read())
{
string fullname = (string)dr["fullname"];
plugin.Info("Name: " + fullname + "");
}
}
}
}
catch (Exception ex)
{
plugin.Info("SQL_ERROR: " + ex.Message + "
" + ex.StackTrace);
}
string SQLConnectionString = "Server=*; Database=*; User ID = *; Password=*; Pooling=false;SslMode=None;";
and i'm getting the error :
SQL_ERROR: The type initializer for 'MySql.Data.MySqlClient.MySqlConnectAttrs' threw an exception.
at (wrapper managed-to-native) System.Object.__icall_wrapper_mono_generic_class_init(intptr)
at MySql.Data.MySqlClient.NativeDriver.SetConnectAttrs () [0x00018] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Authentication.MySqlAuthenticationPlugin.Authenticate (System.Boolean reset) [0x00080] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.NativeDriver.Authenticate (System.String authMethod, System.Boolean reset) [0x0002a] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.NativeDriver.Open () [0x0033f] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Driver.Open () [0x0000e] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Driver.Create (MySql.Data.MySqlClient.MySqlConnectionStringBuilder settings) [0x0004e] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.MySqlConnection.Open () [0x0016d] in <699dc28794d34867bd2008187eb8039c>:0
at PlayerXP.PlayerXP.OnEnable () [0x00021] in <80e302c4eac64aeebd42276ff4a14839>:0
I'm running 5.7.25 - MySQL Community Server (GPL)
Server : Localhost with UNIX socket
Protocol version : 10
User : root@localhost
Server char : UTF-8 Unicode (utf8)
Mono JIT compiler version 5.18.0.268
Connector/NET 8.0.15
I use Debian 9.6.
Thanks for your help.
EDIT :
The new error message :
System.TypeInitializationException: The type initializer for 'MySql.Data.MySqlClient.MySqlConnectAttrs' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
at MySql.Data.MySqlClient.MySqlConnectAttrs..cctor () [0x0000f] in <699dc28794d34867bd2008187eb8039c>:0
--- End of inner exception stack trace ---
at (wrapper managed-to-native) System.Object.__icall_wrapper_mono_generic_class_init(intptr)
at MySql.Data.MySqlClient.NativeDriver.SetConnectAttrs () [0x00018] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Authentication.MySqlAuthenticationPlugin.Authenticate (System.Boolean reset) [0x00080] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.NativeDriver.Authenticate (System.String authMethod, System.Boolean reset) [0x0002a] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.NativeDriver.Open () [0x0033f] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Driver.Open () [0x0000e] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.Driver.Create (MySql.Data.MySqlClient.MySqlConnectionStringBuilder settings) [0x0004e] in <699dc28794d34867bd2008187eb8039c>:0
at MySql.Data.MySqlClient.MySqlConnection.Open () [0x0016d] in <699dc28794d34867bd2008187eb8039c>:0
at PlayerXP.PlayerXP.OnEnable () [0x00021] in <cc464d994e5a47c88df91f25374d2f29>:0
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