fltk binding for Nim : getting error " Error: cannot open file: fltk"

[Serge]

Hi,

I have installed nfltk : fltk for Nim using the command:
    
    
    nimble install fltk
    
    
    Run

which seems to work: 
    
    
    Downloading https://github.com/Skrylar/nfltk using git
      Verifying dependencies for fltk@1.3.4
     Installing fltk@1.3.4
        Prompt: fltk@1.3.4 already exists. Overwrite? [y/N]
    y
        Answer:    Success: fltk installed successfully.
    
    
    Run

But a mere attempt to import the corresponding module results in a error 
message:
    
    
    import fltk as fl
    
    
    Run

gives:
    
    
     Error: cannot open file: fltk
    
    
    Run