# AgumentNullException after updating to 1.6

**URL:** <https://discuss.hangfire.io/t/agumentnullexception-after-updating-to-1-6/2220>\
**Category:** question\
**Tags:** sql-server\
**Created:** [July 19, 2016, 9:11am UTC](https://discuss.hangfire.io/t/agumentnullexception-after-updating-to-1-6/2220 "2016-07-19T09:11:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Masoud\_Shokri](https://avatars.discourse-cdn.com/v4/letter/m/8c91f0/32.png) [@Masoud\_Shokri](https://discuss.hangfire.io/u/Masoud_Shokri)\
**Post date:** [July 19, 2016, 9:11am UTC](https://discuss.hangfire.io/t/agumentnullexception-after-updating-to-1-6/2220/1 "2016-07-19T09:11:25Z")

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Today I updated to 1.6 and now I am recieving this error on initializing:  
Exception Details: System.ArgumentNullException: Value cannot be null.  
Parameter name: types  
In  
GlobalConfiguration.Configuration.UseSqlServerStorage(…);