visual studio 2013 Could not copy "obj\Debug\.dll" to "bin\Debug\.dll".

Question

Frequently I am getting this error. Even i have killed the process so many times. Please help.

try restarting visual studio.. – Pankaj Parkar Jul 30 '15 at 18:08 — Pankaj Parkar, Jul 30 '15 at 18:08

score 2 · Answer 1 · answered Jul 30 '15 at 18:08

2

Try start visual studio with administrator privilege

answered Jul 30 '15 at 18:08

Bogdan Mocanu

91
10

I did the same but issue is still persisting. – Ashu Jul 30 '15 at 18:11
Using administrator privilege can build successfully most of the time.Only something the error will prompt again. – Json May 23 '17 at 15:03
No, the problem has nothing to do with admin or non-admin user! – gyousefi Jan 03 '21 at 11:03

score 1 · Accepted Answer · answered Jul 30 '15 at 18:12

1

This usually happens when a file is in use by another process that runs with different user.

Try deleting these files manually (go to the debug folder and delete) and then build your solution.

Make sure you are not debugging while deleting.

answered Jul 30 '15 at 18:12

Tzach Ovadia

1,278
9
18

score 0 · Answer 3 · answered Aug 20 '15 at 17:30

I experienced this on a project created in VS2010 and then opening it in VS2015. When I went back to VS2010 two things had changed:

In the project settings the debug workspace folder had been cleared.
The "use Visual Studio host" button had been unchecked.

I set the workspace to my debug folder and checked the "use host" checkbox and VS2010 was able to properly debug/code/debug multiple times again.

score 0 · Answer 4 · answered May 17 '16 at 07:08

0

I had the same problem, the solution was: Uncheck the "sign the ClickOnce manifests." in Procject Properties/Signing. Some days I checked it to the test and I forgot to uncheck.

answered May 17 '16 at 07:08

Adam Rydzewski

1
1

score 0 · Answer 5 · answered Dec 17 '16 at 07:31

Create a pre-build action in your project by going to project properties (right-click on the project in the solution explorer, and select the Properties option), select the Build Events tab. Add this code:

if exist "$(TargetPath).locked" del "$(TargetPath).locked"
if not exist "$(TargetPath).locked" move "$(TargetPath)" "$(TargetPath).locked"

https://social.msdn.microsoft.com/Forums/en-US/5b71eb06-5047-483d-8fd3-b75c102d41e9/unable-to-copy-from-objdebug-to-bindebug?forum=Vsexpressinstall&prof=required

It is only able to run once, after that will get another unable to delete error. — Json, May 23 '17 at 14:35

visual studio 2013 Could not copy "obj\Debug\.dll" to "bin\Debug\.dll".

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