I have a problem with Goto widget, it doesn't display anything, the error displayed is that proj4.js is not found, i copy and paste the folder Goto in my project and it keeps giving me the same error.

I have a problem with Goto widget, it doesn't display anything, the error displayed is that proj4.js is not found, I copy and paste the folder Goto in my project and it keeps giving me the same error.

I have a probleme with Goto widget, it doesn't display anything, the error displayed is that proj4.js is not dound, i copy and paste the folder Goto in my project and it keeps giving me the same error.help please

I have a problem with Goto widget, it doesn't display anything, the error displayed is that proj4.js is not found, i copy and paste the folder Goto in my project and it keeps giving me the same error.