com port 8 already in use

amansinghaljpr · November 8, 2014, 5:25pm

i have installed the ftdi drivers for programming my arduino pro mini but when i tried to uplead the code this message was coming

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Arduino: 1.0.6 (Windows NT (unknown)), Board: "Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega328"
Binary sketch size: 1,082 bytes (of a 30,720 byte maximum)

processing.app.SerialException: Serial port 'COM8' already in use. Try quiting any programs that may be using it.

at processing.app.Serial.(Serial.java:171)

at processing.app.Serial.(Serial.java:77)

at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:77)

at processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:175)

at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67)

at processing.app.Sketch.upload(Sketch.java:1666)

at processing.app.Sketch.exportApplet(Sketch.java:1622)

at processing.app.Sketch.exportApplet(Sketch.java:1594)

at processing.app.Editor$DefaultExportHandler.run(Editor.java:2382)

at java.lang.Thread.run(Thread.java:619)

processing.app.debug.RunnerException: Serial port 'COM8' already in use. Try quiting any programs that may be using it.

at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:101)