Error: '-' is not a valid resource name character in Android Studio

Question

I created a new Google Maps Activity, and the only thing I did was stick my API key into the .xml file. When I run the project, I get an: "Error: '-' is not a valid resource name character" in the .xml file. What is wrong with the project, and how can I fix the error? .xml file error

Answer 1

i had this error, mainly it is where you place the key... Replace the YOUR_KEY in the code with your API key that start with Alza

from

 <string name="google_maps_key"
    templateMergeStrategy="preserve"
    translatable="false">YOUR_KEY</string>

to

 <string name="google_maps_key"
    templateMergeStrategy="preserve"
    translatable="false">AIzaSyBs8wUvJW-zOZixEiPmedagyrW8Y7VcW4I</string>

Answer 2

in your android studio on google_maps_api.xml there will something like this :

You can also add your credentials to an existing key, using this line: 47:2A:E4:BC:00:1D:21:E2:FA:20:B9:AB:70:FB:75:E7:23:16:37:C1;com.example.radio.demomap

notice that it is separated by a semicolon

47:2A:E4:BC:00:1D:21:E2:FA:20:B9:AB:70:FB:75:E7:23:16:37:C1 ; com.example.radio.demomap

now when you go to google console developer to create credentials

example

type your package name and fingerprint certificate key and enter create you will get your correct key