Cannot verify / upload sketch -> error adding symbols: Malformed archive

Development Tools IDE 1.x
1

Good afternoon,

It's my first time posting here so hopefully in the right place.

This morning I logged in to Arduino Create Online IDE and it was having a connection error (don't recall the exact message). My Arduino (Genuino) Uno was shown as connected so I made a sketch but couldn't upload it, got this error first:

Error reading file: open /tmp/813518644/custom/TimerOne/library.properties: permission denied

Logged out of Arduino Create, restarted my laptop (MacBook Pro end 2013) and logged in again. Now when trying to Verify and Upload even a basic Example project (BareMinimum) I get this error below. Tried to remove and re-add the TimerOne library from the online IDE but that doesn't help either. Still get below error:

./opt/arduino-builder/arduino-builder -compile -core-api-version 10611 -hardware opt/arduino-builder/hardware -hardware ./opt/cores -tools opt/arduino-builder/tools -tools ./opt/tools -built-in-libraries opt/libraries/latest -logger humantags -fqbn arduino:avr:uno -build-cache /tmp -build-path /tmp/384880688/build -verbose -prefs runtime.tools.avr-gcc.path=./opt/tools/avr-gcc/5.4.0-atmel3.6.1-arduino2 -prefs runtime.tools.avrdude.path=./opt/tools/avrdude/6.3.0-arduino14 -prefs runtime.tools.arduinoOTA.path=./opt/tools/arduinoOTA/1.2.1 -libraries /tmp/384880688/custom -libraries /tmp/384880688/pinned /tmp/384880688/BareMinimum

Linking everything together...

/tmp/384880688/build/../../core/core_arduino_avr_uno_86d814ab5ac6e08f9be464f7f3c7beb3.a: error adding symbols: Malformed archive

collect2: error: ld returned 1 exit status

exit status 1

The past week everything went fine, didn't change anything myself before logging in this morning. So I don't understand what went wrong and why suddenly I can't Verify and Upload anymore.
Can't find anything online that helps me out, does someone have an idea of what to do?

Thanks in advance for your help!

2

There is a dedicated section for Arduino Create. You can report your post asking the question to be moved.

There is a link "report to moderator" under your post.

Can't help further, sorry.

3

This sort of error could be caused by your antivirus software. Try TEMPORARILY disabling your antivirus for a single compilation to see if the problem goes away, then turn the antivirus back on. If the problem doesn't occur with the antivirus off you will need to adjust the settings of your antivirus to whitelist the appropriate file, folder, or process so it doesn't interfere with compilation.

4

In the end the problem somehow solved itself without me doing anything about it after my post. Just connected my Arduino today, hit Verify and then Upload and everything worked just as fine as before the issue. Weird and a waste of a few hours but luckily it works again so that's most important.

@sterretje, thanks for the info. Will remember it next time I have a question.