One of my ASP.NET application was working with oracle 10g without any issue. I have upgraded the database to 19c and changed connection string accordingly. Now projects compiles and when I run I get this error.
When I debug, I get this error.
What can be the reason and how can I resolve it?
You need to update Oracle.ManagedDataAccess package to 19.x.
I had the same issue, with the same version of Oracle.ManagedDataAccess (12.2.1100) and Oracle Database 19.0.128.0.0.
After installing the new version, it took a while for VS2019 really update it. Even though the new version was installed, in runtime it was referencing the older version. I had to clean package cache and reinstall. After that, everything worked fine.
Adding this as an answer as my versions appeared slightly different from earlier posted.
I ran into this error
[ArgumentException: Oracle Data Provider for .NET does not support
Oracle 19.0.112.0.0]
while running a Visual Studio solution using
VS2019/Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production originally written using
VS2017/ODP.NET 12.1.24160719
due to the underlying Oracle upgrade to 19c Edition.
Performed the Oracle.ManagedDataAccess Nuget upgrade from v12x to v19x from within the Visual Studio
Tools-> Nuget Package Manager -> Manage Nuget Packages for Solution
which resolved the issue for me.
When I try to connect MySQL (8.0) database with Visual Studio 2018 I get this error message
"Authentication method 'caching_sha2_password' not supported by any of the available plugins"
Also I am unable to retrieve Database name.
I use mysql-for-visualstudio-1.2.7 and mysql-connector-net-8.0.11 for connection.
Is there any possible way to fix it.
1st
Modify the MySql Server:
Open MySQL Installer - Community
Select Product MySQL Server
Click on Quick configure in last column
Click on next untill you will not point to Authentication method
On Authentication method tab- select Use Legacy Authentication method
Click on next and finish
Now you can login with normal password
2nd
If you are using .net framework 4.5.2
you can easy upgrade reference of MySQL.Data:
Visulastudio> Tools> Nuget Package Manager>Manage nuget package for solution
Go to Browse tab, Write Search textbox mysql and enter
first mysql.data package will come, install it
Now login, issue will resolved
This is a new authentication method used in MySQL version 8.0 as compared to mysql_native_password, which is the legacy method. In order to make this work, you will need to upgrade your MySQL Client library to version 8.0.
So, use the following link and get the version 8.0.11 or higher.
https://dev.mysql.com/downloads/connector/net/
I had the same issue. Fixed it by removing the reference to MySQL.Data then re-adding it.
Update the Pomelo.EntityFrameworkCore.MySql Nuget Package to 2.0.0.1 instead of 2.0.0
2.0.0.1 is more stable than 2.0.0 and 2.0.1
Just update your nuget package for MySql.Data
Our old .NET Framework 4.6.2 project began throwing this exception, when someone came back to using it after we updated MySQL server version few months ago.
So at first, as others recommend, I updated all packages via NuGet Package Manager (including MySql.Data to v8.0.24) - didn't seem to help at first. Then in project properties updated project target framework to .NET Framework 4.7.2 - still nothing.
Then I noticed the connection string had this providerName parameter:
<connectionStrings>
<add name="___" providerName="MySql.Data.MySqlClient" connectionString="server=___;user id=___;password=___;database=___;"/>
</connectionStrings>
so I tried removing the .MySqlClient part from it, leaving it
providerName="MySql.Data"
and for some reason it worked:) Maybe updating the MySql.Data package was part of the solution and the .MySqlClient is some obsolete property. No idea.
Do you hardly need the authentication method in MySQL to be 'caching_sha2_password'? If not, why don't you just switch it to 'Standard'?
You can check this in the "User and Privileges" settings and look for the Authentication Type.
I faced the same error while i was trying to connect my client machine to the Server. I had to connect to MySQL server hosted on the Server. I have got this to working. Followed the following steps:
Download the latest MySQL community version i.e 8.0.18.0 installed. Make sure that the same version of MySQL is installed in the server machine. Please note that either the same version of MySQL are installed in client machine and server machine or else client machine should have higher version of MySQL installed.
With the help of MySQL installer make sure that you installed 'Developer' version in your client machine, so as to have MySQL server, SQL.net, mySQL for visual studio e.t.c all will get installed in it.
We are using .Net framework 4.5.2 in latest MySQL community. So, make sure you using Visual studio 2019. Build UiConfigEDItor source code in Visual Studio 2019 so that it will have support for higher version .Net framework 4.5.
Now, copy all files (mysqlData.dll in particular) from SQL installed workspace(C:\Program Files (x86)\MySQL\Connector NET 8.0\Assemblies\v4.5.2) to Visual Studio 2019 workpace (C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\Common7\IDE).
Log off you machine and now open UIConfigEditor source code in visual studio 2019.
Now in Solution Explore->References->Add References->Go to Assemblies tsb-> Extensions->Search for mysql.data.dll(make sure that its there)->check that option.
Please note that mysql.data.dll is of version 8.0.18.0 in this case.
Sometimes, it has a silly reason. In my case, I forgot to create my database in MySQL. Sometimes, one my forgot to run database daemon.
Not every scary error message is because of a scary situation.
I am attempting to create an Entity Data Model using the wizard to reverse engineer an existing MySQL database. I get to the Choose Your Data Connection page of the wizard, select an existing MySQL connection and click Next, and the wizard crashes. Specifically, the dialog box just disappears without an error message or any trace. Every single time. Restarting VS or Windows does nothing.
I can connect to the database using Server Explorer and the same connection without problem, so I'm fairly confident it isn't a connection problem.
This is in Visual Studio 2015 with all updates installed, version 1.2.6 of MySQL for Visual Studio, EF 6.1.3, and MySql.Data and MySql.Data.Entity.EF6 versions 6.8.3.0. It is a Console application targeting the .NET Framework 4.6.1.
Google hasn't revealed anything useful yet. Another question here from yesterday is similar, but is crashing at a different point and that user can't connect using Server Explorer. So it seems to be a different situation.
There is nothing in the Windows logs that is of any help.
How can I solve this problem?
It is caused by version mismatch.
On my system, I had MySQL Connector 6.9.6.
Issuing the command in NuGet Package Manger Console:
Install-Package MySql.Data.Entity
installs version 6.9.8 by default. Your connector must match the actual version of the NuGet Package.
You can download an updated version of the connector from: https://www.mysql.com/products/connector/
Here select the "Ado.net driver for MySQL", and download the corresponding version (in this case 6.9.8). Reopen Visual Studio and now the wizard does not crash. No reboot required.
I had this problem today, following the tips here that it is a "version mismatch" is completely correct!
My important "discovery" is that they have renamed the package you need for EF6!
As many people here has discovered (for example "Nofi"), downgrading to match versions fixes the problem. However, instead of downgrading the new versions, swap out the Mysql.Data.Entity package for the newer MySql.Data.EntityFramework! :)
short: use MySql.Data.EntityFramework, NOT Mysql.Data.Entity
Out of sheer luck and chance, I happened upon the same error.
I am using VS 2015 with Entity Framework 6 as well. The error also happened as I was attempting to create the model from the database using EF reverse engineering existing connection.
The problem is that even though the data connection exists, and you can refresh it, somehow the connection is broken. Go to the Server Explorer panel on the left, then under Data Connections find your existing connection, and instead of checking it using refresh, right click it and choose Modify Connection.
From here try testing the connection and pressing OK. You should get an error (for me it said 'Unable to connect to any of the specified MySQL hosts.')
I faced the same issue it was because I was using Mysql connector v 8.0.12 ,MySql.Data v8.0.12 and Mysql.Data.Entity v6.10.8.
The program crashes because of compatibility issues.What worked for me is I installed all three of the same version
Mysql connector v 6.10.8 and MySql.Data v6.10.8 and Mysql.Data.Entity v6.10.8.
This keeps happening with VS2017 and the latest MySQL connector (6.10.6). Downgrading both the connector and the Nuget package to 6.9.11 works.
For those struggling in Visual Studio 2019 Community, I applied the solution provided at dev.mysql.com.
The following configuration works for me:
MySQL Installer:
MySQL Server 8.0.14
MySQL Workbench 8.0.14 [probably optional]
MySQL for Visual Studio 1.2.9
MySQL Shell 8.0.14 [probably optional]
Connector/NET 6.10.8
NuGet packages:
EntityFramework v6.4.4
MySql.Data v8.0.14
MySql.Data.EntityFramework v8.0.14
Note: Items in bold must have exactly the same version.
After running the installations, Visual Studio prompted for an update to one of the connectors. Once the update was applied (only a couple of minutes for that bit), the system is working.
As I commented to Lars Meldgård, uninstalling and reinstalling version 6.9.9 of Connector/Net got me one page further in the wizard. So I'll take that as a win. But I'm really confused why this worked. I was getting the problem on two different computers, my main desktop machine and my laptop. Similar configurations in Windows 10 with everything up to date, so were both corrupted? Not likely.
So now the problem is on the Choose Your Version page of the wizard, where I'm getting the error below. But that is a different problem, which I'll tackle next.
New error on next page of wizard
I am new to programming/.Net development. I had the same problem where the window disappears when I try and generate a entity model from MySql database.
I tried the matching versions of Nuget packages and connector but still no joy. What I did to get it working is as follows:
I removed and then re-created the project(lucky it was a new project)
-Then generated the model from the Database
Then I installed the Nuget packages to match the version of my connector.
I am using VS 2017 Community Edition,
Connector V6.9.9,
Nuget packages V6.8.8
Hope this helps somebody.
Since the highest version of MySql.Data.Enetity is v6.10.8 I can find via nuget, I have downloaded the "mysql-connector-net-6.10.8.msi " so then I downgraded MySql.Data to v.6.10.8, that did trick!
I am sharing my issue I finally resolved, as this is a real headache to catch.
I had a Role ID column in Table Role initially set to number(38,0) in SQL and created it that way, and then changed to NUMBER(10,0) and changed it.
After days of trying to resolve this, I finally right clicked the tables in the Server connection, and clicking Designer. My one table : Role, had a column ID - type number(10,0). It was linked to Table USER as RoleID. After checking the RoleID in table USER, in the designer it was showing up as Number(38,0) .
So check your foreign keys one by one... This was my issue which cost me 3 days to finally catch. My EF Dialog box also just disappeared, or would give me no tables in the EDMX file.
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework, Version=8.0.16.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
</providers>
I changed the version of MySql.Data.EntityFramework to 8.0.16 because my connector 8.0.16 and problem has vanished. this worked for me
The mismatches seem to be on the exact version of the MySQL Connector Net. I have many projects in dev and prod with "MySQL Connector Net 8.0.13" and am not able to upgrade across the board yet. The current NuGet package was "MySQL Connector Net 8.0.15". I had to uninstall both "MySql.Data.EntityFramework 8.0.15" and "MySql.Data 8.0.15" and then force the version with command line installs to match the current version of MySQL Connector Net that I run in dev and prod:
PM> Install-Package MySql.Data -Version 8.0.13
PM> Install-Package MySql.Data.EntityFramework -Version 8.0.13
Installing MySQL 8.0 Server with EntityFramework in Visual Studio 2019
Install MySQL Server 8.0.16
Install Complete MySQL Connector.Net x86 8.0.16
Install this custom repacked VSIX MySQL Visual Studio
If after installing MySQL Visual Studio Plugin it shows warning that failed to execute comamnd devenv /updateconfiguration, then manually execute that command in Developer Command Prompt for Visual Studio 20xx with run as administrator.
Run this command Install-Package EntityFramework in Visual Studio Nuget package manager console
Manage Nuget Packages > Search Mysql > install Mysql.Data v8.0.16
Manage Nuget Packages > Search Mysql > install Mysql.Data.Entity v6.10.8
Manage Nuget Packages > Search Mysql.Data.EntityFramework > install Mysql.Data.EntityFramework v8.0.16
Add this lines if its not automatically added after tag in Web.config and rebuild solution
</provider>-->
Even if doing all the above process some error occurs, then try uninstall nuget packages all the above added and UnInstall-Package EntityFramework uninstall visual studio plugin and connector net. Then rebuild fresh project, and add only Install-Package EntityFramework and then add references only Mysql.Data and Mysql.Data.EntityFramework for EF6 and then add the provider xml in web.config as mentioned above and remove the white space between the and tags, and rebuild project and finally try to add model.
This process is tested and working for .Net Framework 4.7.2 on Visual Studio 2019
I finally fixed this by renaming the folder c:\users\myusername\appdata\roaming\microsoft\visualstudio\10.0 to "10.0 old"
I've just started coding in Visual Studio Code with .NET Core, on Ubuntu 14.04.4
I'm used to both using Ubuntu (from personal interests, hobby, etc) and .NET and Visual Studio at work.
But I've run into a problem i can't seem to overcome. I'm building a small console app that i want to communicate with a MySql Server, but I can't seem to get the MySql.ConnectorNET.Data working properly.
It was installed with the command dnu install MySql.ConnectorNET.Data And that seemed to work fine. The dependency was added in the project.json file, and intellisense was able to traverse the package just fine, but the OmniSharp Log reports that:
[INFORMATION:OmniSharp.Dnx.DnxProjectSystem] Project /home/<username>/VSCode/SimpleSQLatmpt/project.json has these unresolved references: MySql.ConnectorNET.Data
and I simply can't seem to fix that. VSCode seems to detect it, and asks me to run the dnu restore command. But it's to no avail. For all intends and purposes it seems like MySql.ConnectorNET.Data is available in the project, but just can't be used.
Can any one tell me how to fix this?
And just as important, why it is happening in the first place?
Thank you very much for your time.
At the time of this question (Mar 2016) there was no .NET Core-compatible ADO.NET provider for MySQL.
Now situation is changed:
MySqlConnector written by Bradley Grainger -- licensed under MIT, and offers full async support
MySql.Data (>6.10) provided by Oracle (traditionally, GPL)
Personally I prefer MySqlConnector -- it can be used in commercial projects for free (MIT license); also I've tested it with my NReco.Data library under Linux, and it works perfectly in my scenarious. Unfortunately, MySqlConnector doesn't support EF Core yet.
--- UPDATE --
One more .NET Core-compatible MySQL connector + EF Core MySQL provider:
Pomelo.Data.MySql (unfortunately it doesn't implement true async behaviour)
Pomelo.EntityFrameworkCore.MySql
UPDATE 2
MySql Connector NET for .NET Core 1.0 was just released (Sep 2016)
http://insidemysql.com/mysql-connector-net-for-net-core-1-0/
I didn't try Bradley Grainger's connector, but this one from MySQL do not support SSL. :(
So, anybody who wants to use anyway, should connect with ";SslMode=None;" in the connection string.
I wanted to try WebKit by following this tutorial, but gmcs compiler was't able to find "webkit-sharp-1.0" package. Where can i get it and how to install it?
The original Webkit# no longer seems under development (latest commit is from 2009) and I have never encountered any windows packages for it but you can use open-webkit-sharp which is working on Windows.