After unpublishing the customization package in one or multiple instances and again trying to re-publish, the system throws the below mentioned error exception:
System.IO.IOException: The process cannot access the file 'C:\Program Files\Acumatica ERP\Administrator\.vs\Administrator\FileContentIndex\write.lock' because it is being used by another process.
![](https://uploads-us-west-2.insided.com/acumatica-en/attachment/b44ffcf4-16c7-4a45-b39f-270def538a4c.png)
There isn’t any other customizations that have been published before.
Can anyone please guide us out the reason of this exception message.
Thank you.
Best answer by Harshita
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