Can't compile at all. HELP!!!

Using Arduino Installation & Troubleshooting
#1

So it's been a while since I fired up my Arduino IDE, and when I tried to compile, it shows the error "Error compiling for board Arduino/Genuono" with no other texts. I tried reinstalling the IDE and Java, deleted all temp folders and in the end it's still showing the same error.

I turned on the verbose text and this is what it shows me:

Arduino: 1.8.4 (Windows 7), Board: "Arduino/Genuino Uno"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Hush\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10804 -build-path C:\Users\Hush\AppData\Local\Temp\arduino_build_453410 -warnings=none -build-cache C:\Users\Hush\AppData\Local\Temp\arduino_cache_239312 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\Hush\Documents\Arduino\sketch_sep13a\sketch_sep13a.ino

Error compiling for board Arduino/Genuino Uno.

I have no idea what they meant at all. Please help, I've tried all I can to no avail. Thanks.

EDIT: I forgot to mention that it used to work flawlessly about half a year ago. Not sure what changes I've made to my PC that caused this.

#2

Turn on VERBOSE in the IDE preferences to get the full error messages.

Thanks for using code tags you dont know how much we appreciate that.

#3

ballscrewbob:
Turn on VERBOSE in the IDE preferences to get the full error messages.

Thanks for using code tags you dont know how much we appreciate that.

That was already the full error with VERBOSE turned on.

#4

WOW then you really do have an issue.

So we know its win 7 on the latest IDE with a UNO.

Anything connected to the board ?
Does device manager see it ?
Real UNO or a clone ?
Was that just a compile or an upload ?

Any other info you can provide ?

#5

ballscrewbob:
WOW then you really do have an issue.

So we know its win 7 on the latest IDE with a UNO.

Anything connected to the board ?
Does device manager see it ?
Real UNO or a clone ?
Was that just a compile or an upload ?

Any other info you can provide ?

Anything connected to the board ?
I've tried to do both, same result.

Does device manager see it ?
It even shows up in the COM selection in the IDE.

Real UNO or a clone ?
It's real.

Was that just a compile or an upload ?
It gives the error during compilation, so it doesn't even attempt to even upload.

It does it with any board I selected. At first I thought it's a library issue, then I decided to try it on a blank sketch (the default you get from just opening a new IDE window). Then I tried to make a deliberate syntax error. The error messages given were all identical.

#6

It does sound like an install issue with the IDE.

Have you tried the deletion of the folder “Arduino15”

Myself I might be going for a clean install should that fail.

Some help attached.

CLEAN UP BEFORE INSTALLING ANOTHER COPY OF THE IDE OR ARDUINO CREATE.pdf (345 KB)

#7

I just realised there was one thing I haven’t tried. I reinstalled the IDE in the D drive and now it works fine.
Still don’t know what was the issue though, cause I’ve deleted the temp folders when I helplessly reinstalled it over and over previously.

Thanks anyway!

#8