# Manager error **URL:** \ **Category:** Uncategorized\ **Created:** [November 20, 2016, 2:03pm UTC](https://forum.manager.io/t/manager-error/7761 "2016-11-20T14:03:04Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![bobk](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/bobk/32/5883_2.png) [@bobk](https://forum.manager.io/u/bobk)\ **Post date:** [November 20, 2016, 2:03pm UTC](https://forum.manager.io/t/manager-error/7761/1 "2016-11-20T14:03:04Z")
I tried sending to [bugs@manager.io](mailto:bugs@manager.io) and that failed also… Tonight I tried to send an invoice, It sugested I download the latest version for Linux Mint. After downloading the latest version, Now [manager.io](http://manager.io) won’t open… I am writing this from a nother linux distro or another version of linux mint located on another hard drive but the same computer. When I tried to import the backup into this version of manager .io. I got this error message below. I’m not sure what else I can do. On my other Hard drive the thing won’t even open. On this drive, I cant retrieve backup. Help! Internal Error ``` Sorry, something went wrong. Please report this error to bugs@manager.io. If possible, please attach your Manager backup file so we can reproduce this problem internally. Also, please include the following information in your error report: 15.2.0 (Desktop) System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary. at System.Collections.Generic.Dictionary`2[System.Guid,System.Type].get_Item (Guid key) [0x00000] in :0 at Manager.Serialization.GetTypeByGuid (Guid guid) [0x00000] in :0 at Manager.ApplicationData.Get (Guid entityId) [0x00000] in :0 ``` ---
**Author:** ![Tut](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/tut/32/3286_2.png) [@Tut](https://forum.manager.io/u/Tut)\ **Post date:** [November 20, 2016, 3:01pm UTC](https://forum.manager.io/t/manager-error/7761/2 "2016-11-20T15:01:17Z")
The first thing to try is updating your Manager software from [Download | Manager](https://www.manager.io/desktop/download). Yours is almost two years old and many hundreds of updates out of date. If your problem remains, reply to this post and I will elevate it as a bug. That gets the fastest attention. ---
**Author:** ![bobk](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/bobk/32/5883_2.png) [@bobk](https://forum.manager.io/u/bobk)\ **Post date:** [November 20, 2016, 7:24pm UTC](https://forum.manager.io/t/manager-error/7761/3 "2016-11-20T19:24:44Z")
I tried to remove and re install the latest version 3 times already, ``` bob@bob-desktop ~ $ /opt/manager-accounting/manager-accounting Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for ---> System.TypeInitializationException: An exception was thrown by the type initializer for ank1Ⴐ.ႠႳႨ ---> System.ArgumentNullException: Argument cannot be null. Parameter name: obj at ank1Ⴐ.ႠႳႨ.Ⴈ () [0x00000] in :0 at ank1Ⴐ.ႠႳႨ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ManagerDesktop.Program.Main (System.String[] args) [0x00000] in :0 [ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: An exception was thrown by the type initializer for ---> System.TypeInitializationException: An exception was thrown by the type initializer for ank1Ⴐ.ႠႳႨ ---> System.ArgumentNullException: Argument cannot be null. Parameter name: obj at ank1Ⴐ.ႠႳႨ.Ⴈ () [0x00000] in :0 at ank1Ⴐ.ႠႳႨ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ManagerDesktop.Program.Main (System.String[] args) [0x00000] in :0 bob@bob-desktop ~ $ ``` ---
**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:** [November 20, 2016, 7:26pm UTC](https://forum.manager.io/t/manager-error/7761/4 "2016-11-20T19:26:17Z")
Go to [Redirecting…](http://www.mono-project.com/download/#download-lin) and upgrade to the latest version of Mono from there. My guess would be that your Linux Mint has outdated version of Mono. ---
**Author:** ![bobk](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/bobk/32/5883_2.png) [@bobk](https://forum.manager.io/u/bobk)\ **Post date:** [November 21, 2016, 5:13am UTC](https://forum.manager.io/t/manager-error/7761/5 "2016-11-21T05:13:49Z")
NO! My linux mint is 100% up to date including mono. Is there anything else I can try, it all started by errors when emailing invoice. then I read I had to upgrade to the latest [manager.io](http://manager.io) and now nothing. It won’t even load up. When I try to execute the file, here is what I get via terminal: ``` bob@bob-desktop ~ $ /opt/manager-accounting/manager-accounting Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for ---> System.TypeInitializationException: An exception was thrown by the type initializer for ank1Ⴐ.ႠႳႨ ---> System.ArgumentNullException: Argument cannot be null. Parameter name: obj at ank1Ⴐ.ႠႳႨ.Ⴈ () [0x00000] in :0 at ank1Ⴐ.ႠႳႨ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ManagerDesktop.Program.Main (System.String[] args) [0x00000] in :0 [ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: An exception was thrown by the type initializer for ---> System.TypeInitializationException: An exception was thrown by the type initializer for ank1Ⴐ.ႠႳႨ ---> System.ArgumentNullException: Argument cannot be null. Parameter name: obj at ank1Ⴐ.ႠႳႨ.Ⴈ () [0x00000] in :0 at ank1Ⴐ.ႠႳႨ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ..cctor () [0x00000] in :0 --- End of inner exception stack trace --- at ManagerDesktop.Program.Main (System.String[] args) [0x00000] in :0 bob@bob-desktop ~ $ ``` ---
**Author:** ![bobk](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/bobk/32/5883_2.png) [@bobk](https://forum.manager.io/u/bobk)\ **Post date:** [November 21, 2016, 5:31am UTC](https://forum.manager.io/t/manager-error/7761/6 "2016-11-21T05:31:52Z")
I think that I could install successfully if I deleted: /opt/manager-accounting/manager-accounting The entire contents of the folder, because I have the latest backup anyhow, should I try this? Oh and thank you so much for all the phone conversations we’ve had over the years. I have been your supporter since day One Lubos. You probably don’t remember me but that’s OK too 🙂 ---
**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:** [November 21, 2016, 5:34am UTC](https://forum.manager.io/t/manager-error/7761/7 "2016-11-21T05:34:15Z")
> [@bobk](#): > > NO! My linux mint is 100% up to date including mono. What’s the version of Mono you have currently installed? ---
**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, 3:30pm UTC](https://forum.manager.io/t/manager-error/7761/8 "2023-01-18T15:30:17Z")
Closed on January 18, 2023, 3:30pm UTC