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The provider did not return a ProviderManifestToken string - Cannot connect to MySql Hosts

I have a simple MVC app I'm working on. I'm trying to connect to a MSSQL server using Entity Data Model (code first from database). After successfully adding the data using the Entity Data Model Wizard, the code below throws the error "The provider did not return a ProviderManifestToken string". The inner exception is "Unable to connect to any of the specified MySql Hosts. The thing I can't figure out though, is I'm not using MySql anywhere in the project. Searching in the project explorer for "MySql" turns up nothing. Doing a Ctrl+F and searching for MySql also returns nothing found. My web.config only has the one connection string in it for the MSSQL server connection. What can I do to figure out why my project is trying to connect to this unknown MySQL server?
My code:
string something = kyg.Products.FirstOrDefault(m => m.ItemNo == "128676").ShortDescription.ToString();
I don't have an issue with the MSSQL server - I have many apps that are running successfully on the same connection. I just can't find this unknown reference to a MySql server. Any Ideas on where to look/what to try?
Edit
I felt it is worth mentioning that I inherited this project, and can't confirm what development was done on it prior to me taking it over. Also, I was looking through the files, and did find MySql.Data.dll, MySql.Data.Entity.EF6.dll, and MySql.Web.dll. I moved these files out of the bin folder, and now receive a different error -
File Not Found - Could not load file or assembly MySql.Data.Entity.EF6.dll - so something is trying to reference that dll, I just can't figure out what or where it is coming from.
Thanks in advance,

Asp.net error on trying to connect with database

I am trying to connect to a database which is an .mdb file from my web application on asp.net. This error comes up 'Microsoft.ACE.OLEDB.12.0 Data Source =C:\Users\KIKI\Desktop\ASP.net labs\Erg8\Erg8\ebookstoredb.mdb' provider is not registered on the local machine. The thing is that on my connection string I don't use version 12 but 4. I tried installing Microsoft Access Database Engine 2010 Redistributable which gives me the option to select version 12 when I set it the connection from the "Server Explorer" window but the error is still there. Any ideas? I have spent hours looking for a solution...
Here is my connection string:
OleDbConnection constring = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\Users\\KIKI\\Desktop\\ASP.net labs\\Erg8\\Erg8\\ebookstoredb.mdb");
Also, I tested the connection when I set it and a message "Connection Succeeded" came up. The problem seems to be when I run the application on the browser.

SQL database on Visual Studio server error when publish

I have created a website on visual studio and I have added an SQL database onto it. I am using DetailsView and GridView to display the data. It works perfectly before I published the website using GoDaddy. I am assuming there is some security issue I need to fix. Any suggestions or help would be great. Thank you.
Here is the error:
Server Error in '/' Application.
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request failed.
Source Error:
[No relevant source lines]
Source File: App_Web_lfy0dq0l.0.cs Line: 0
Stack Trace:

If you are not make sure you are running Visual Studio as Administrator. I'm getting this from the application line in your comment.
Server Error in '/' Application.
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request failed.

ADOMD Connection Error

I am receiving the following error from ADOMD while trying to connect to my SSAS Server.
An unhandled exception of type 'System.Xml.XmlException' occurred in
Microsoft.AnalysisServices.AdomdClient.dll
Additional information: Element 'return' was not found. Line 5,
position 2.
I can confirm the following:
My Connection String Is:
Data Source=<MyServer>;Catalog=<My SSAS DB>; UID=<MyDomain>\<MyDomainUser>;PWD=<MyPassword>;
I can confirm that my connection string is correct ( or at least the data I am using in the connection string above is correct). If I change any part of the connection string to an incorrect value the ADOMDConnection will return "Cannot connect to server". I have also looked at the audit logs on the server itself and confirm that I am successfully logging onto the server. And the contrary, with incorrect credentials the server logs confirm a failed login.
I am trying to connect to SSAS 2014 Enterprise
The failed connection returns within a few seconds. A few posts out on the internet suggest increasing the Connection Timeout property. This does not seem to be my issue as I have increased it to 120 and its failing within 5.
I am using ADOMD 12.0 Runtime 2.0.50727
My domain user is a domain admin and has been added to an admin role in the SSAS.
Im not sure what else could be wrong or how to debug this or is this a known bug in ADOMD?
Any advice would greatly appreciated.
thanks!
Jason

This happens routinely when the version of the ADOMD client DLL is not a version that matches the target version of the server instance. For example, Azure Analysis Services as of 09/13/2017 does not work with Microsoft.AnalysisServices.AdomdClient.dll version 13. Only version 14 and above.
For reference, the ADOMD DLL for Azure Analysis Service is available in the link below:
https://learn.microsoft.com/en-us/azure/analysis-services/analysis-services-data-providers
Double check to make sure the client DLL is the exact version needed for the target server instance. That solved this exact issue in my case.

Not able to Connect to Crystal Reports 2008

I'm exporting a crystal report 2008 to pdf in C#.
The crystal report is connected to sql server 2008 using odbc.
I want to deploy this in a different system. it works if the db name is the same.
Is there a way to supply the db name dynamically. I tried
repDoc.SetDatabaseLogon(db_username, db_password,server,db);
and it fails with the error below
Logon failed.
Details: [Database Vendor Code: 18456 ]Database Connector Error: ' [Database Vendor Code: 18456 ]'Failed to open the connection.
Details: [Database Vendor Code: 18456 ]Error in File denial_completed_letters {84E1BDEF-C60B-46E1-9080-77F699692270}.rpt:
Unable to connect: incorrect log on parameters.
Details: [Database Vendor Code: 18456 ]

Good news / bad news: the bad news is that you can't use SetDatabaseLogon to change the db name. The good news is that you can use another function, ApplyLogOnInfo to do that:
http://msdn.microsoft.com/en-us/library/cc411352(v=VS.90).aspx
http://msdn.microsoft.com/en-us/library/ms226184(v=VS.90).aspx
Just get the logon info from the Table.LogOnInfo constructor, change the values, and call ApplyLogOnInfo.

Sounds like your database server isn't configured for both NT and SQL authentication.
or you can use sa user that have access over target database.

For Windows 7, try to install your application by Run as Administrator and set the run as administrator compatibility to the exe. To set Run as Administrator compatibility to the exe right click on the exe then go to properties -> compatibility, check the Run as administrator checkbox and click OK.