I wish to generate an application signature for my app which will later be integrated with Facebook. In one of Facebook\'s tutorials, I found this command:
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Use the entire path, like this:
exportcert -alias androiddebugkey -keystore ~/.android /debug.keystore | "C:\openssl\bin\openssl.exe" sha1 -binary | "C:\openssl\bin\op enssl.exe" base64
It worked for me.