I cannot upload program to arduino after the last upload time, but Serial Monitor is displaying previous program result.
There have two different error message between arduino-1.0.5-r2 and arduino-1.5.6-r2 (arduino IDE).
p.s. i do not install ftdi usb driver.
What can i do now?
Also, i want to ask this "avrdude stk500_getsync() not in sync resp=0x30" is arduino problem or PC problem?
Driver Manager
https://drive.google.com/file/d/0B-9jhrQur3BpSW9Uamo0dnY3VTg/edit?usp=sharing
<<arduino-1.0.5-r2>>
avrdude stk500_getsync() not in sync resp=0x30
https://drive.google.com/file/d/0B-9jhrQur3BpaXpqY1FFWFFCMXc/edit?usp=sharing
<<arduino-1.5.6-r2>>
Sketch uses 2,550 bytes (7%) of program storage space. Maximum is 32,256 bytes.
Global variables use 184 bytes (8%) of dynamic memory, leaving 1,864 bytes for local variables. Maximum is 2,048 bytes.
avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified.
processing.app.debug.RunnerException
at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:125)
at processing.app.Sketch.upload(Sketch.java:1719)
at processing.app.Sketch.exportApplet(Sketch.java:1625)
at processing.app.Sketch.exportApplet(Sketch.java:1597)
at processing.app.Editor$DefaultExportHandler.run(Editor.java:2397)
at java.lang.Thread.run(Unknown Source)
Caused by: processing.app.debug.RunnerException: Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
at cc.arduino.packages.Uploader.executeUploadCommand(Uploader.java:111)
at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:123)
... 5 more
https://drive.google.com/file/d/0B-9jhrQur3BpRWE3aXhWX3JJUlE/edit?usp=sharing