# Error installing Duplicati 2.1.0.3 on Debian Testing **URL:** \ **Category:** Installation\ **Created:** [March 1, 2025, 1:14pm UTC](https://forum.duplicati.com/t/error-installing-duplicati-2-1-0-3-on-debian-testing/20259 "2025-03-01T13:14:20Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![omgdz](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/o/e480ec/32.png) [@omgdz](https://forum.duplicati.com/u/omgdz)\ **Post date:** [March 1, 2025, 1:14pm UTC](https://forum.duplicati.com/t/error-installing-duplicati-2-1-0-3-on-debian-testing/20259/1 "2025-03-01T13:14:20Z")
I am getting this error message: Unpacking duplicati (2.1.0.3) over (2.1.0.2) … dpkg: error processing archive duplicati-2.1.0.3\_beta\_2025-01-22-linux-x64-gui.deb (–install): trying to overwrite ‘/usr/lib/duplicati/BouncyCastle.Cryptography.dll’, which is also in package duplicati-agent (2.1.0.101) dpkg-deb: error: paste subprocess was killed by signal (Broken pipe) Errors were encountered while processing: duplicati-2.1.0.3\_beta\_2025-01-22-linux-x64-gui.deb I am running debian testing, if that matters ---
**Author:** ![kenkendk](https://forum.duplicati.com/user_avatar/forum.duplicati.com/kenkendk/32/5305_2.png) [@kenkendk](https://forum.duplicati.com/u/kenkendk)\ **Post date:** [March 2, 2025, 2:17pm UTC](https://forum.duplicati.com/t/error-installing-duplicati-2-1-0-3-on-debian-testing/20259/2 "2025-03-02T14:17:59Z")
> [@omgdz](#): > > dpkg: error processing archive duplicati-2.1.0.3\_beta\_2025-01-22-linux-x64-gui.deb (–install): > trying to overwrite ‘/usr/lib/duplicati/BouncyCastle.Cryptography.dll’, which is also in package duplicati-agent (2.1.0.101) It looks like you also have Duplicati agent installed? The two packages cannot currently be installed at the same time because they both install into `/usr/lib/duplicati`. I have not considered a case where it makes sense to have both the agent and another version installed at the same time. Do you have a case where it is beneficial to have both editions? ---
**Author:** ![omgdz](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/o/e480ec/32.png) [@omgdz](https://forum.duplicati.com/u/omgdz)\ **Post date:** [March 2, 2025, 6:55pm UTC](https://forum.duplicati.com/t/error-installing-duplicati-2-1-0-3-on-debian-testing/20259/3 "2025-03-02T18:55:02Z")
Thank you for the quick reply. I think I must have installed agent when Duplicati started needing a password to interact with it. I just issued this command and received this message: ~$ sudo duplicati-agent clear Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly ‘Duplicati.Library.Crashlog, Version=2.1.0.101, Culture=neutral, PublicKeyToken=null’. The system cannot find the file specified. File name: ‘Duplicati.Library.Crashlog, Version=2.1.0.101, Culture=neutral, PublicKeyToken=null’ at Duplicati.Agent.Net8.Program.Main(String args) at Duplicati.Agent.Net8.Program.(String args) Aborted So, i must not have registered it I saw in [https://docs.duplicati.com/duplicati-programs/agent](https://docs.duplicati.com/duplicati-programs/agent) how to uninstall agent in windows. It was unclear how to remove it in Linux, but I issued the command sudo dpkg -r duplicati-agent, and was successful in removing agent and in allowing me to upgrade to the lastest beta ---
**Author:** ![kenkendk](https://forum.duplicati.com/user_avatar/forum.duplicati.com/kenkendk/32/5305_2.png) [@kenkendk](https://forum.duplicati.com/u/kenkendk)\ **Post date:** [March 6, 2025, 12:17pm UTC](https://forum.duplicati.com/t/error-installing-duplicati-2-1-0-3-on-debian-testing/20259/4 "2025-03-06T12:17:06Z")
> [@omgdz](#): > > I saw in [Agent | Duplicati](https://docs.duplicati.com/duplicati-programs/agent) how to uninstall agent in windows. It was unclear how to remove it in Linux, but I issued the command sudo dpkg -r duplicati-agent, and was successful in removing agent and in allowing me to upgrade to the lastest beta Yes, that is exactly the way, just remove the previous `.deb` installed. > [@omgdz](#): > > Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly ‘Duplicati.Library.Crashlog, Version=2.1.0.101, Culture=neutral, PublicKeyToken=null’. The system cannot find the file specified. This indicates somehow that the file `Duplicati.Library.Crashlog.dll` is missing from the system. It may be a case of mixed versions being installed. But if you have it fixed, there is no need to dig deeper I think.