Could not copy "obj\Debug\etc" to "obj\Debug\etc". Exceeded retry count of 10. Failed.

 1. Stop the Running Application
Make sure your app (yourapp(ur application name)) is not running.
Open Task Manager (Ctrl+Shift+Esc) → go to Details tab.
Find yourapp(ur application name)) → End Task.
Rebuild your project.

2. Clean and Rebuild
In Visual Studio:
Go to Build → Clean Solution
Then Build → Rebuild Solution
This clears the obj and bin folders and rebuilds everything fresh.

3. Check for Debugger/Antivirus Locks
Sometimes, even if the EXE isn’t running:
Antivirus software may be scanning or locking the file — temporarily disable real-time protection or add your project folder toa exceptions.
Visual Studio Debugger might not have released the file — close the solution and reopen it.

4. Manually Delete Locked Files
If the above doesn’t work:
Close Visual Studio.
Open File Explorer → navigate to your project folder.
Delete the folders:
bin\Debug
obj\DebugReopen Visual Studio → Rebuild.
If Windows says “file is in use,” use a tool like Process Explorer:
Download from Microsoft Sysinternals.Search for (yourapp(ur application name)) → right-click → Kill Process.

5. Disable Parallel Builds (Optional)
If your solution has multiple projects:
Go to Tools → Options → Projects and Solutions → Build and RunSet “maximum number of parallel project builds” = 1
This avoids concurrent file access issues.

6. Check Post-Build Events

If you have a post-build script that copies or runs the EXE, ensure it’s not launching the app before the next build.

How to download (clone) a Git repository into a specific folder ?

If you want to download (clone) a Git repository into a specific folder, you can do it very easily using the git clone command with a folder path at the end. 

Option 1 – Clone directly into a specific folder Command format: git clone 

Example: git clone https://github.com/username/Notes.git D:\Projects\NotesApp 

This will: Download the Git repository into the folder D:\Projects\NotesApp If the folder doesn’t exist, Git will create it automatically. 

Option 2 – Clone in current folder with custom name. If you’re in a directory (e.g. D:\Projects) and you want to clone the repo into a subfolder with a custom name, do this: 

cd D:\Projects (Enter)

git clone https://github.com/username/Notes.git 

MyNotes It will create a folder called MyNotes inside D:\Projects and put the repo code there.