i cant upload sketches

whenever i try to uplaod my sketch iget this error

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x0f
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x10
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x20

i even tried the solutions in here : http://www.instructables.com/id/A-solution-to-avrdude-stk500getsync-not-in-syn/ but nothing worked heeeeeeeeeeeeeeeeelp i am using an arduino uno

I had the same error :(( I tried many times but I can’t fix it. Please help me.

Arduino: 1.6.12 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 928 bytes (2%) of program storage space. Maximum is 32,256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x20
An error occurred while uploading the sketch

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
[code]

[/code]

Hi, take a checking for sure the correct Board and Serial port before uploading. Good luck and have fun.

What does your device manager tell you? Does Windows recognize your Arduino? If not, you have to install a driver first. This is true for Arduino clones.

Is your Uno original? Are all of the drivers correctly installed? You might try to install the IDE on another PC and try to upload a sketch.

Maybe it’s unrelated to your problem, but I had this problem when trying to upload sketches when something on the RX and TX pin were connected.

Hello. Yesterday I installed a new version into my computer. But, now, when I compiling send me an error like this:
Arduino: 1.6.12 (Windows 10), Board: “Arduino/Genuino Uno”

Sketch uses 1,068 bytes (3%) of program storage space. Maximum is 32,256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes.
java.io.IOException: Cannot run program “REMOVE/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:129)
at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:206)
at cc.arduino.UploaderUtils.upload(UploaderUtils.java:78)
at processing.app.SketchController.upload(SketchController.java:707)
at processing.app.SketchController.exportApplet(SketchController.java:680)
at processing.app.Editor$DefaultExportHandler.run(Editor.java:2176)
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.(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
… 8 more
An error occurred while uploading the sketch

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.