I had checked my api key by has_google_key.It's ture.
But the function of get_map always reports error.
After I tried to run one of ggmap function,it indicates that "Source : https://maps.googleapis.com/maps/api/geocode/json?address=Tianjin&key=xxx-7fu0VQVO4d_q7oGRw7Q_i82ZFeuY
Error in curl::curl_fetch_memory(url, handle = handle) :
Timeout was reached: [maps.googleapis.com] Connection timed out after 10007 milliseconds"
And I had tried to run the function in the environment of VPN. the result was same as before.
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