Problem when trying to upload the code to arduino UNO from the browser with mLink in Windows 10

[jolosan]

Hi, I can perfectly run programs in Live mode to Arduino UNO from google Chrome in Windows 10.
But when I try to upload the code, it doesn’t work and throws the following error:

Command failed: avr-toolchain/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I"/app/src/external/arduino/avr-library/variants/standard" -I"avr-library/cores/arduino" -I"arduino-libraries/makeblock/src/" -I"arduino-libraries/makeblock/src/utility/avr/" -I"avr-library/libraries/Wire/src/utility/" -I"avr-library/libraries/Wire/src/" -I"avr-library/libraries/EEPROM/src/" -I"avr-library/libraries/SPI/src/" -I"avr-library/libraries/SoftwareSerial/src/" -I"arduino-libraries/arduino/WiFi/src/" -I"arduino-libraries/arduino/SD/src/" -I"arduino-libraries/arduino/Bridge/src/" -I"arduino-libraries/arduino/Temboo/src/" -I"arduino-libraries/arduino/Servo/src/" -I"arduino-libraries/arduino/Ethernet/src/" -I"arduino-libraries/arduino/TFT/src/" -I"arduino-libraries/arduino/SpacebrewYun/src/" -I"arduino-libraries/arduino/LiquidCrystal/src/" -I"arduino-libraries/arduino/GSM/src/" “/root/mblock-avr/temp/build/code.cpp” -o “/root/mblock-avr/temp/build/code.o” sh: 0: getcwd() failed: No such file or directory /bin/sh: 1: avr-toolchain/bin/avr-g++: not found

Failed to compile file code.cpp

Arduino compile finish.

Arduino server disconnected.

Any help would be appreciated!

[tech_support]

Hi jolosan,
Please download and install the mBlock5 software to your computer and try.
https://www.mblock.cc/en-us/download

By the way, please share me the code that you are trying to upload.
Also please show me a screenshot of the error message.

[pcmarriott]

Yes, I have the same problem too. It must be a recent bug with the online mBlock because it didn’t do this before.

Uploading with the Windows/macOS version of mBlock 5 is fine, but I tend not to use this version since I cannot sign out and sign in with different accounts, unlike the web version.

In the ‘Upload Progress’ window, I get this:

start processing code…

processing code by middleware of pinMode

Arduino server connected.

Arduino compile…

variantPath:/app/src/external/arduino/avr-library/variants/standard

avr-toolchain/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I"/app/src/external/arduino/avr-library/variants/standard" -I"avr-library/cores/arduino" -I"arduino-libraries/makeblock/src/" -I"arduino-libraries/makeblock/src/utility/avr/" -I"avr-library/libraries/Wire/src/utility/" -I"avr-library/libraries/Wire/src/" -I"avr-library/libraries/EEPROM/src/" -I"avr-library/libraries/SPI/src/" -I"avr-library/libraries/SoftwareSerial/src/" -I"arduino-libraries/arduino/WiFi/src/" -I"arduino-libraries/arduino/SD/src/" -I"arduino-libraries/arduino/Bridge/src/" -I"arduino-libraries/arduino/Temboo/src/" -I"arduino-libraries/arduino/Servo/src/" -I"arduino-libraries/arduino/Ethernet/src/" -I"arduino-libraries/arduino/TFT/src/" -I"arduino-libraries/arduino/SpacebrewYun/src/" -I"arduino-libraries/arduino/LiquidCrystal/src/" -I"arduino-libraries/arduino/GSM/src/" “/root/mblock-avr/temp/build/code.cpp” -o “/root/mblock-avr/temp/build/code.o”

Command failed: avr-toolchain/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I"/app/src/external/arduino/avr-library/variants/standard" -I"avr-library/cores/arduino" -I"arduino-libraries/makeblock/src/" -I"arduino-libraries/makeblock/src/utility/avr/" -I"avr-library/libraries/Wire/src/utility/" -I"avr-library/libraries/Wire/src/" -I"avr-library/libraries/EEPROM/src/" -I"avr-library/libraries/SPI/src/" -I"avr-library/libraries/SoftwareSerial/src/" -I"arduino-libraries/arduino/WiFi/src/" -I"arduino-libraries/arduino/SD/src/" -I"arduino-libraries/arduino/Bridge/src/" -I"arduino-libraries/arduino/Temboo/src/" -I"arduino-libraries/arduino/Servo/src/" -I"arduino-libraries/arduino/Ethernet/src/" -I"arduino-libraries/arduino/TFT/src/" -I"arduino-libraries/arduino/SpacebrewYun/src/" -I"arduino-libraries/arduino/LiquidCrystal/src/" -I"arduino-libraries/arduino/GSM/src/" “/root/mblock-avr/temp/build/code.cpp” -o “/root/mblock-avr/temp/build/code.o” sh: 0: getcwd() failed: No such file or directory /bin/sh: 1: avr-toolchain/bin/avr-g++: not found

Failed to compile file code.cpp

Arduino compile finish.

Arduino server disconnected.

[pcmarriott]

If you’re able to access YouTube, a more detailed description of the issue can be found here: https://www.youtube.com/watch?v=g15CAZv2GRw

[pcmarriott]

Good news for now: The problem appears to have been fixed! It is now possible to upload code from mBlock via. mLink to the boards again. Many thanks.

[tech_support]

@pcmarriott, Good news.
@jolosan, please confirm if your problem also fixed.

[ericchiu]

Same here. can anybody help?

[tech_support]

Hi ericchiu,
Please share me the code that you are using.
I will test it on my side.
Thanks.

[JRauer]

Hello tech_support,
it seems the upload issue for Arduinos is there again. The problem seems to be at your server: “avr-toolchain/bin/avr-g++: not found”. It also appears when I try to upload an “empty” program with just the minimal code required.

Thank you very much!

[Crackel]

Hello Makeblock,

I often program with mBlock 5 over the internet and mLink 2.1.1 without any problems.
Unfortunately, I am currently having the same problem with my mBot.

1. Cannot download with mLink2 and the internet version (mBot);
2. Possible to uplode the Firmware (mBot);
3. Possible to download with mLink2 and the internet version (Codey);
4. Possible to download without mLink2 and local version of mBlock 5.3.0 (mBot);

Change felt: Installation of Arduino IDE 2.0.0 beta3 and the PlatformIO for Visual Core.
Questioning: Did the installations feel changed the PATH for the Arduino libraries…
How does your mLink 2.1.1 work ???

[Crackel]

Hi,

It is functional, it was probably on the side of the Makeblock servers ??? Otherwise, that’s okay for me !!

[tech_support]

Hi Crackel, can you share me the program you failed to upload? I will try from our side and find out what’s happening

[Crackel]

When that didn’t work, I put the project aside and try it the next day. It worked so I’m happy.

[caper1964]

I get the same toolchain error trying to upload a program. It was working and now cannot load at all even with blank program. Is there a solution?

[shortstuff]

Hi, I am having the same issue - would love to know a solution

[Crackel]

Hi capers1964, shortstuff

Yesterday there was a problem but this morning it is correct. Please try again and don’t keep up to date.

[tech_support]

Dear all, it seems to be a problem of the server service, and we restarted it. Now the problem should be fixed, please try again

[MOntse]

Hello!
I tested with my students this morning from a windows computer and the online version it doesn’t works ( error with compilation) We also tested from chromes and it happens the same error with compilation
Before easter holidays it works for us.
Thanks

[tech_support]

Hello, can you record a video to show the problem then send to support@makeblock.com ? It would be more helpful to located the problem with video

[Crackel]

Hi Tech_support,

Another compilation error. Is this a server problem with you?