The Android package name and signing-certificate fingerprint, null and null, do not match the app restrictions configured on your API key. <p>I took an error like in below. My API Key is Android API key but it didn't work. So, could you help me for how can I solve to this problem.</p> <pre><code>com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden { "code" : 403, "errors" : [ { "domain" : "usageLimits", "message" : "The Android package name and signing-certificate fingerprint, null and null, do not match the app restrictions configured on your API key. Please use the API Console to update your key restrictions.", "reason" : "ipRefererBlocked", "extendedHelp" : "https://console.developers.google.com/apis/credentials?project=85239799105" } ], "message" : "The Android package name and signing-certificate fingerprint, null and null, do not match the app restrictions configured on your API key. Please use the API Console to update your key restrictions." } </code></pre>