Cant Upload sketch T_T

Development Tools IDE 1.x
1

I was about to test a new sketch I made then, this happens

java.io.IOException: Cannot run program "{runtime.tools.avrdude.path}/bin/avrdude": CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
	at processing.app.helpers.ProcessUtils.exec(ProcessUtils.java:26)
	at cc.arduino.packages.Uploader.executeUploadCommand(Uploader.java:123)
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:175)
	at cc.arduino.UploaderUtils.upload(UploaderUtils.java:78)
	at processing.app.Sketch.upload(Sketch.java:1186)
	at processing.app.Sketch.exportApplet(Sketch.java:1160)
	at processing.app.Sketch.exportApplet(Sketch.java:1132)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2381)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
	at java.lang.ProcessImpl.start(ProcessImpl.java:137)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)

It was perfectly fine because I just upload a sketch before this happens.
I'm using Arduino IDE 1.6.8 , Arduino MEGA2560