While Integrating Paypal why i got this Error?

Please Anyone can tell me why i got this kind of error:

ACK=Failure&L_ERRORCODE0=81002&L_SHORTMESSAGE0=Unspecified%20Method&L_LONGMESSAGE0=Method%20Specified%20is%20not%20Support开发者_StackOverflow中文版ed&L_SEVERITYCODE0=Error

The error code is 81002 and the message is "Specified Method is not Supported". Post your code and you may get better answers.

You can also check the PayPal API Error Codes Reference for any error message you receive. The particular error message you posted is a Validation Error.

Make sure you are doing GET requests vs POST.

If I had to guess, I'd say that you're trying to call a method that is not supported.