# Manager.SerializationException **URL:** \ **Category:** Uncategorized\ **Created:** [June 5, 2017, 8:53am UTC](https://forum.manager.io/t/manager-serializationexception/9885 "2017-06-05T08:53:11Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![praffert](https://avatars.discourse-cdn.com/v4/letter/p/c77e96/32.png) [@praffert](https://forum.manager.io/u/praffert)\ **Post date:** [June 5, 2017, 8:53am UTC](https://forum.manager.io/t/manager-serializationexception/9885/1 "2017-06-05T08:53:11Z")
![](https://us1.discourse-cdn.com/flex019/uploads/manager1/original/2X/a/ae3197ce402cb9ed9a80cce7e60829dc8d594aa5.jpg) When I try to open a manager file I get this exception error. I have uninstalled and reinstalled the latest version of manager. What is causing this? -Pat ---
**Author:** ![lubos](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/lubos/32/62798_2.png) [@lubos](https://forum.manager.io/u/lubos)\ **Post date:** [June 5, 2017, 9:41am UTC](https://forum.manager.io/t/manager-serializationexception/9885/2 "2017-06-05T09:41:51Z")
Try the latest version (17.5.26). It won’t fix your problem but the error should be different to give more pointers what’s wrong. ---
**Author:** ![praffert](https://avatars.discourse-cdn.com/v4/letter/p/c77e96/32.png) [@praffert](https://forum.manager.io/u/praffert)\ **Post date:** [June 5, 2017, 2:56pm UTC](https://forum.manager.io/t/manager-serializationexception/9885/3 "2017-06-05T14:56:15Z")
I have downloaded the msi file from the link - [Download | Manager](https://www.manager.io/desktop/download) The error is still the same. How can I see the version that is installed? ---
**Author:** ![d3mad](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/d3mad/32/3963_2.png) [@d3mad](https://forum.manager.io/u/d3mad)\ **Post date:** [June 5, 2017, 3:17pm UTC](https://forum.manager.io/t/manager-serializationexception/9885/4 "2017-06-05T15:17:37Z")
it is faintly printed in the top corner > [@Checking version number?](https://forum.manager.io/t/checking-version-number/9216/2): > > Version number is now in the upper right corner of the window, above the Backup button: [image] ---
**Author:** ![sharpdrivetek](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/sharpdrivetek/32/34244_2.png) [@sharpdrivetek](https://forum.manager.io/u/sharpdrivetek)\ **Post date:** [June 5, 2017, 3:17pm UTC](https://forum.manager.io/t/manager-serializationexception/9885/5 "2017-06-05T15:17:56Z")
have you installed and updated all the .NET Framework versions? ---
**Author:** ![lubos](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/lubos/32/62798_2.png) [@lubos](https://forum.manager.io/u/lubos)\ **Post date:** [June 5, 2017, 10:09pm UTC](https://forum.manager.io/t/manager-serializationexception/9885/6 "2017-06-05T22:09:58Z")
@praffert, if the error is the same, I’m pretty sure you are not installing the latest version. Are you using Windows, Linux or Mac? ---
**Author:** ![praffert](https://avatars.discourse-cdn.com/v4/letter/p/c77e96/32.png) [@praffert](https://forum.manager.io/u/praffert)\ **Post date:** [June 6, 2017, 6:02am UTC](https://forum.manager.io/t/manager-serializationexception/9885/7 "2017-06-06T06:02:05Z")
I do not see any version info above the backup button on my windows machine. I have even tried changing the screen contrast. I found the version info from Windows Control Panel =\> Programs and Features. After a few attempts I managed to downloaded the installation file for the newest version and now everything works fine again. Thanks for the support. ---
**Author:** ![Ealfardan](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/ealfardan/32/63166_2.png) [@Ealfardan](https://forum.manager.io/u/Ealfardan)\ **Post date:** [January 18, 2023, 3:26pm UTC](https://forum.manager.io/t/manager-serializationexception/9885/8 "2023-01-18T15:26:32Z")