Localizable.strings causing plist parsing error

This message can also be come due to use of :(colon) instead of ;(semicolon) at line end. Please be sure there is semicolon(;) at each end of line and also there is no colon(:) also.

"Enter URL" = "Voer adres in";
"Headers" = "Koppen";
"Key" = "sleutel";
"Value" = "waarde";
"Parameters" = "Parameters";
"Tap to add a new line" = "Tik om een nieuwe lijn toe te voegen";
"Perform request" = "Verzoek Uitvoeren";
"Response" = "Antwoord";
"Received Headers" = "Ontvangen Koppen";
"Error" = "Fout";
"Loading" = "Verzoek aan het versturen";

this is the correct formula

As stated in the error message, you're missing semicolons at the end of each line.

"foo" = "bar";

Is the correct format