It work fine , thinks a lot @Konrad Stępień !

Hi @Sebastien Jarjanette,

I found the problem. Gatsby.js has his own Routing and if you want use it you should use code like this:

replace import { BrowserRouter as Router } from 'react-router-dom'

for this import { Link } from "gatsby",

and MDBNavLink for something like this

<Link
   to="#"
   className={`nav-link Ripple-parent ${this.state.items['default'] === '1'? "active" : ""}`}
   onClick={this.togglePills('default', '1')}
> 
    ... 
</Link>

But you need to change className number in your element.

My full code:

import React, { Component } from 'react'
import { Link } from "gatsby"
import {
  MDBContainer,
  MDBRow,
  MDBCol,
  MDBNav,
  MDBNavItem,
  MDBTabContent,
  MDBTabPane,
} from 'mdbreact'

class App extends Component {
  state = {
    items: {
      default: '1',
    },
  }

  togglePills = (type, tab) => e => {
    e.preventDefault()
    if (this.state.items[type] !== tab) {
      let items = { ...this.state.items }
      items[type] = tab
      this.setState({
        items,
      })
    }
  }
  render() {
    return (
        <MDBContainer className="mt-4">
          <MDBRow>
            <MDBCol md="12">
              <h2>Default</h2>
              <MDBNav className="mt-5 nav-pills">
                <MDBNavItem>
                  <Link
                    to="#"
                    className={`nav-link Ripple-parent ${this.state.items['default'] === '1'? "active" : ""}`}
                    onClick={this.togglePills('default', '1')}
                  >
                    Home
                  </Link>
                </MDBNavItem>
                <MDBNavItem>
                  <Link
                    to="#"
                    className={`nav-link Ripple-parent ${this.state.items['default'] === '2'? "active" : ""}`}
                    onClick={this.togglePills('default', '2')}
                  >
                    Profile
                  </Link>
                </MDBNavItem>
                <MDBNavItem>
                  <Link
                    to="#"
                    className={`nav-link Ripple-parent ${this.state.items['default'] === '3'? "active" : ""}`}
                    onClick={this.togglePills('default', '3')}
                  >
                    Contact
                  </Link>
                </MDBNavItem>
              </MDBNav>
              <MDBTabContent activeItem={this.state.items['default']}>
                <MDBTabPane tabId="1">
                  <p>
                    Consequat occaecat ullamco amet non eiusmod nostrud dolore
                    irure incididunt est duis anim sunt officia. Fugiat velit
                    proident aliquip nisi incididunt nostrud exercitation
                    proident est nisi. Irure magna elit commodo anim ex veniam
                    culpa eiusmod id nostrud sit cupidatat in veniam ad. Eiusmod
                    consequat eu adipisicing minim anim aliquip cupidatat culpa
                    excepteur quis. Occaecat sit eu exercitation irure Lorem
                    incididunt nostrud.
                  </p>
                </MDBTabPane>
                <MDBTabPane tabId="2">
                  <p>
                    Ad pariatur nostrud pariatur exercitation ipsum ipsum culpa
                    mollit commodo mollit ex. Aute sunt incididunt amet commodo
                    est sint nisi deserunt pariatur do. Aliquip ex eiusmod
                    voluptate exercitation cillum id incididunt elit sunt. Qui
                    minim sit magna Lorem id et dolore velit Lorem amet
                    exercitation duis deserunt. Anim id labore elit adipisicing
                    ut in id occaecat pariatur ut ullamco ea tempor duis.
                  </p>
                </MDBTabPane>
                <MDBTabPane tabId="3">
                  <p>
                    Est quis nulla laborum officia ad nisi ex nostrud culpa
                    Lorem excepteur aliquip dolor aliqua irure ex. Nulla ut duis
                    ipsum nisi elit fugiat commodo sunt reprehenderit laborum
                    veniam eu veniam. Eiusmod minim exercitation fugiat irure ex
                    labore incididunt do fugiat commodo aliquip sit id deserunt
                    reprehenderit aliquip nostrud. Amet ex cupidatat excepteur
                    aute veniam incididunt mollit cupidatat esse irure officia
                    elit do ipsum ullamco Lorem. Ullamco ut ad minim do mollit
                    labore ipsum laboris ipsum commodo sunt tempor enim
                    incididunt. Commodo quis sunt dolore aliquip aute tempor
                    irure magna enim minim reprehenderit. Ullamco consectetur
                    culpa veniam sint cillum aliqua incididunt velit ullamco
                    sunt ullamco quis quis commodo voluptate. Mollit nulla
                    nostrud adipisicing aliqua cupidatat aliqua pariatur mollit
                    voluptate voluptate consequat non.
                  </p>
                </MDBTabPane>
              </MDBTabContent>
            </MDBCol>
          </MDBRow>
        </MDBContainer>
    )
  }
}

export default App

Hi @Konrad Stępień , sorry but the code crash in production I think react-router-dom and the platform Gatsby.js doesn't work together .

this is maybe a solution

Hi @Sebastien Jarjanette,

Can you test my code? In my project,

I use:

• MDBNavLink instead of using CustomLink.
• import { BrowserRouter as Router } from 'react-router-dom' and <Router> in code
• I was following this guide
• My MDBReact version is 4.18 (I change the version in dependencies, delete node modules folder and use npm i)

Everything works correctly.

My code:

import React, { Component } from 'react'
import { BrowserRouter as Router } from 'react-router-dom'
import {
  MDBContainer,
  MDBRow,
  MDBCol,
  MDBNav,
  MDBNavItem,
  MDBNavLink,
  MDBTabContent,
  MDBTabPane,
} from 'mdbreact'

class App extends Component {
  state = {
    items: {
      default: '1',
    },
  }

  togglePills = (type, tab) => e => {
    e.preventDefault()
    if (this.state.items[type] !== tab) {
      let items = { ...this.state.items }
      items[type] = tab
      this.setState({
        items,
      })
    }
  }
  render() {
    return (
      <Router>
        <MDBContainer className="mt-4">
          <MDBRow>
            <MDBCol md="12">
              <h2>Default</h2>
              <MDBNav className="mt-5 nav-pills">
                <MDBNavItem>
                  <MDBNavLink
                    to="#"
                    active={this.state.items['default'] === '1'}
                    onClick={this.togglePills('default', '1')}
                  >
                    Home
                  </MDBNavLink>
                </MDBNavItem>
                <MDBNavItem>
                  <MDBNavLink
                    to="#"
                    active={this.state.items['default'] === '2'}
                    onClick={this.togglePills('default', '2')}
                  >
                    Profile
                  </MDBNavLink>
                </MDBNavItem>
                <MDBNavItem>
                  <MDBNavLink
                    to="#"
                    active={this.state.items['default'] === '3'}
                    onClick={this.togglePills('default', '3')}
                  >
                    Contact
                  </MDBNavLink>
                </MDBNavItem>
              </MDBNav>
              <MDBTabContent activeItem={this.state.items['default']}>
                <MDBTabPane tabId="1">
                  <p>
                    Consequat occaecat ullamco amet non eiusmod nostrud dolore
                    irure incididunt est duis anim sunt officia. Fugiat velit
                    proident aliquip nisi incididunt nostrud exercitation
                    proident est nisi. Irure magna elit commodo anim ex veniam
                    culpa eiusmod id nostrud sit cupidatat in veniam ad. Eiusmod
                    consequat eu adipisicing minim anim aliquip cupidatat culpa
                    excepteur quis. Occaecat sit eu exercitation irure Lorem
                    incididunt nostrud.
                  </p>
                </MDBTabPane>
                <MDBTabPane tabId="2">
                  <p>
                    Ad pariatur nostrud pariatur exercitation ipsum ipsum culpa
                    mollit commodo mollit ex. Aute sunt incididunt amet commodo
                    est sint nisi deserunt pariatur do. Aliquip ex eiusmod
                    voluptate exercitation cillum id incididunt elit sunt. Qui
                    minim sit magna Lorem id et dolore velit Lorem amet
                    exercitation duis deserunt. Anim id labore elit adipisicing
                    ut in id occaecat pariatur ut ullamco ea tempor duis.
                  </p>
                </MDBTabPane>
                <MDBTabPane tabId="3">
                  <p>
                    Est quis nulla laborum officia ad nisi ex nostrud culpa
                    Lorem excepteur aliquip dolor aliqua irure ex. Nulla ut duis
                    ipsum nisi elit fugiat commodo sunt reprehenderit laborum
                    veniam eu veniam. Eiusmod minim exercitation fugiat irure ex
                    labore incididunt do fugiat commodo aliquip sit id deserunt
                    reprehenderit aliquip nostrud. Amet ex cupidatat excepteur
                    aute veniam incididunt mollit cupidatat esse irure officia
                    elit do ipsum ullamco Lorem. Ullamco ut ad minim do mollit
                    labore ipsum laboris ipsum commodo sunt tempor enim
                    incididunt. Commodo quis sunt dolore aliquip aute tempor
                    irure magna enim minim reprehenderit. Ullamco consectetur
                    culpa veniam sint cillum aliqua incididunt velit ullamco
                    sunt ullamco quis quis commodo voluptate. Mollit nulla
                    nostrud adipisicing aliqua cupidatat aliqua pariatur mollit
                    voluptate voluptate consequat non.
                  </p>
                </MDBTabPane>
              </MDBTabContent>
            </MDBCol>
          </MDBRow>
        </MDBContainer>
      </Router>
    )
  }
}

export default App

This is for the free version. Maybe you use a pro version instead of free and this is a problem.

Please write to me if the problem still exists after you check my code.

Best, Konrad.