# Why does this give me an error ERROR: ParseError("invalid iteration specification")

**URL:** <https://discourse.julialang.org/t/why-does-this-give-me-an-error-error-parseerror-invalid-iteration-specification/19942>\
**Category:** New to Julia\
**Created:** [January 22, 2019, 6:22pm UTC](https://discourse.julialang.org/t/why-does-this-give-me-an-error-error-parseerror-invalid-iteration-specification/19942 "2019-01-22T18:22:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![bsnyh](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@bsnyh](https://discourse.julialang.org/u/bsnyh)\
**Post date:** [January 22, 2019, 6:22pm UTC](https://discourse.julialang.org/t/why-does-this-give-me-an-error-error-parseerror-invalid-iteration-specification/19942/1 "2019-01-22T18:22:54Z")

</div>

```julia
julia> for i in [1:3;], for j in [4:6;]
          println(i, " ", j)
       end
ERROR: ParseError("invalid iteration specification")
Stacktrace:
 [1] #parse#236(::Bool, ::Bool, ::Function, ::String, ::Int64) at ./parse.jl:222
 [2] (::Base.#kw##parse)(::Array{Any,1}, ::Base.#parse, ::String, ::Int64) at ./<missing>:0
 [3] #parse#237(::Bool, ::Function, ::String) at ./parse.jl:232
 [4] macro expansion at /home/devel/.julia/v0.6/Atom/src/repl.jl:118 [inlined]
 [5] anonymous at ./<missing>:?

```

I’m using Julia 0.7.

---

<div class="post-metadata">

**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\
**Post date:** [January 22, 2019, 6:27pm UTC](https://discourse.julialang.org/t/why-does-this-give-me-an-error-error-parseerror-invalid-iteration-specification/19942/2 "2019-01-22T18:27:43Z")

</div>

> [@bsnyh](#):
>
> `for i in [1:3;], for j in [4:6;]`

You want `for i in [1:3;], j in [4:6;]` … don’t repeat the `for` keyword.