PRB: "Only One Database Connection at a Time Is Supported" Error Message When You Merge Source Controlled Solution Files in Visual Studio .NET IDE (317523)


The information in this article applies to:

  • Microsoft Visual SourceSafe 6.0c, when used with:
    • Microsoft Visual Studio .NET (2002), Professional Edition
    • Microsoft Visual Studio .NET (2002), Enterprise Architect Edition
    • Microsoft Visual Studio .NET (2002), Enterprise Developer Edition
    • Microsoft Visual Studio .NET (2002), Academic Edition
This article was previously published under Q317523

SYMPTOMS

When you try to merge solution files that contain a project or projects that are under source code control, you may receive the following error message:
Only one database connection at a time is supported

CAUSE

This problem occurs because the projects in each solution are stored in different databases. Only one Visual SourceSafe database is supported in a solution. Even when you use the same database, this problem occurs if one database is identified with a Universal Naming Convention (UNC) path and the other database is identified with a regular file path.

RESOLUTION

To work around this behavior, use one of the following methods.

Workaround 1

Leave the project files in separate solution files.

Workaround 2

Move one solution into the same database as the other database when you merge the solutions. To do this, follow these steps:
  1. Open the first solution in Visual Studio .NET.
  2. On the File menu, point to Source Control, and then click Change Source Control.
  3. In the Change Source Control dialog box, unbind the solution from its source control database.
  4. Open the second solution in Visual Studio .NET.
  5. On the File menu, point to Open, and then click Project.
  6. Click Add to Solution, and then open the first solution.
  7. Check in the project file that you just added. You are prompted to add this project to the same database as the solution that it is being added to.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce the Behavior

  1. Create a new project in Visual Studio .NET.
  2. On the File menu in the Visual Studio .NET IDE, point to Source Control, and then click Add Solution to Source Control.
  3. Close the solution.
  4. Create another new project in Visual Studio .NET.
  5. Add the second solution to source control, and use a different Visual SourceSafe database, or use the same database but specify a UNC path instead of the file path to the database.
  6. On the File menu in the Visual Studio .NET IDE, point to Open, and then click Project.
  7. In the Open Project dialog box, click Add to Solution, open the solution that you created in step 1, and then click Checkout.

REFERENCES

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

307467 HOW TO: Create an ASP.NET Application from Multiple Projects for Team Development

Modification Type:MajorLast Reviewed:9/21/2002
Keywords:kbDSupport kbprb KB317523
©2002 Microsoft Corporation. All rights reserved.