I can't build a game for android

I keep getting error code;
Error building Player: CommandInvokationFailure: Unable to list target platforms. Please make sure the android sdk path is correct. See the Console for more details.
C:\Program Files\Java\jdk-9\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir=“C:/Android ools” -Dfile.encoding=UTF8 -jar “C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar” -

stderr[
Error:Invalid command android
]
stdout[

]
exit code: 64

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I hope this will help you,