Q:

Import and use strike components

I'm new to salesforce development so this will be probably a very trivial question but I'm stuck here. 
I'm trying to import and use Strike lookup component
So I have imported all the files in the needed folder and synched everything with my org. 
Now as far as I have understood, I should be able to use this code: 
<c:strike_lookup
label="Account"
object="Account"
searchField="Name"
placeholder="Select an option"
iconName="standard:account"
subtitleField="Industry"
order="Name"
limit="5"
loadingMessage="Loading..."
errorMessage="Invalid input"/>

Inside a lightning component. 
But when I try to use this code, salesforce complain about strike lookup component not existing. 
What I'm doing wrong here? 
Sorry again for the trivial question, thanks! 
Edit1: (for showing folder structures)

So those are my Aura and Classes folders. 

A:

What you have posted look correct, so a couple of other things to check...
We use strike_lookup and needed to include a few other "building block" strike components for it to work:

defaultTokens
strike_evt
strike_svg
strike_tooltip

If you have put the strike components in a separate part of your source tree, you will need to reference that location in your sfdx-project.json e.g.:
{
    "packageDirectories": [
        {
            "path": "sfdx-source/wiz/main",
            "default": true
        },
        {
            "path": "sfdx-source/wiz/test"
        },
        {
            "path": "sfdx-source/strike/main"
        },
        {
            "path": "sfdx-source/strike/test"
        }
    ],
    "sfdcLoginUrl": "https://login.salesforce.com",
    "sourceApiVersion": "43.0"
}

Best you use your browser's "Developer Tools" to look for the root cause too.