Error: The following package names could not be resolved

New to Julia
1

I’m trying to follow the directions on developing MC web app on this page.
https://www.genieframework.com/docs/genie/tutorials/Developing-MVC-Web-Apps.html

I’m stuck at the step on “Interacting with the movies data”.
If I type “using Movies”, it wants me to add the package. When I add the package, I get the error below

please advise.

julia>using Pkg
julia>Pkg.add(“Movies”)
ERROR: The following package names cold not be resolved:
*Movies (not found in project, manifest, or registry)

1 Like
2

There doesn’t seem to be any Julia package called Movies.

3

Does that mean the instruction provided by the website is not accurate? Is there a work around or what needs to be done to get it working?

4

Did you follow the instructions before that? It looks like the Movie package is quite example that you generate as part of the tutorial.

5

All the steps before were successful including “Creating the Movie model”.
My issue is with Interacting with the movies data.

6

Installing is not necessary. It should load the module defined in app/resources/movies/Movies.jl immediately beforehand.

Please have a look at the output of LOAD_PATH. It should look something like

julia> LOAD_PATH
12-element Vector{String}:
 "@"
 "@v#.#"
 "@stdlib"
 "C:\\Users\\stephan\\Watchtonight"
 "src"
 "app\\helpers"
 "app\\resources"
 ".\\app\\resources\\movies"
 "app\\resources"
 "app\\resources\\movies"
 "app\\resources"
 "app\\resources\\movies\\views"

The entries starting with app make the module Movies discoverable and are added when loading the app with bin/repl as per the instruction.

7

Great, after issuing “bin/repl”, I’m able to issue “using Movies” without adding the package.

My issue is when I tried to seed
julia>seed()
Error: MethodError: cannot ‘convert’ an object of type PosLenString to an object of type Int64

8

Can you provide the full stacktrace? And please quote code and outputs in ``` for proper formatting and readability.

9 
julia> seed()
ERROR: MethodError: Cannot `convert` an object of type PosLenString to an object of type Int64
Closest candidates are:
  convert(::Type{T}, ::Base.TwicePrecision) where T<:Number at /opt/julia-1.7.3/share/julia/base/twiceprecision.jl:262
  convert(::Type{T}, ::AbstractChar) where T<:Number at /opt/julia-1.7.3/share/julia/base/char.jl:185
  convert(::Type{T}, ::CartesianIndex{1}) where T<:Number at /opt/julia-1.7.3/share/julia/base/multidimensional.jl:136
  ...
Stacktrace:
 [1] setproperty!(x::Movie, f::Symbol, v::PosLenString)
   @ Base ./Base.jl:43
 [2] seed()
   @ Main ~/Desktop/web02/Watchtonight/db/seeds/seed_movies.jl:17
 [3] top-level scope
   @ REPL[11]:1
10

Strange. For me line 17 reads

m.year = parse(Int, row.release_year)

Could it be you missed the parse?

11

yes, that worked. thank you