# How to solve this problem with T

**URL:** <https://discourse.julialang.org/t/how-to-solve-this-problem-with-t/37585>\
**Category:** Optimization (Mathematical)\
**Created:** [April 14, 2020, 7:43pm UTC](https://discourse.julialang.org/t/how-to-solve-this-problem-with-t/37585 "2020-04-14T19:43:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![11129](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/11129/32/13818_2.png) [@11129](https://discourse.julialang.org/u/11129)\
**Post date:** [April 14, 2020, 7:43pm UTC](https://discourse.julialang.org/t/how-to-solve-this-problem-with-t/37585/1 "2020-04-14T19:43:11Z")

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Dear everyone,

This is the same problem I cannot step over,

I have tried to fix this problem the whole afternoon

I cannot go to next step…

What T is …

 ![KH`7_ZB_L7Z8MU2H3(X)$Y](https://global.discourse-cdn.com/julialang/original/3X/b/7/b7e52ebd2140014e98942c6ee892dd4e55cc9326.png)

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**Author:** ![anon94023334](https://avatars.discourse-cdn.com/v4/letter/a/e274bd/32.png) [@anon94023334](https://discourse.julialang.org/u/anon94023334)\
**Post date:** [April 14, 2020, 9:40pm UTC](https://discourse.julialang.org/t/how-to-solve-this-problem-with-t/37585/2 "2020-04-14T21:40:26Z")

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Please [don’t post screenshots](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757) - it’s really difficult to see what the problem is.

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**Author:** ![Skoffer](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/skoffer/32/378_2.png) [@Skoffer](https://discourse.julialang.org/u/Skoffer)\
**Post date:** [April 14, 2020, 9:52pm UTC](https://discourse.julialang.org/t/how-to-solve-this-problem-with-t/37585/3 "2020-04-14T21:52:30Z")

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It is highly probable that you have outdated version of CSV.

Can you please provide information of the version of Julia that you are using and CSV.jl?