The missing tools field causes Arduino IDE 1.6.11 to not start if the Sanguino boards package was installed in a previous version. If you attempt to install the Sanguino boards package using Boards Manager in Arduino IDE 1.6.11 it fails with a java.lang.NullPointerException error.
The missing tools field causes Arduino IDE 1.6.11 to not start if the Sanguino boards package was installed in a previous version. If you attempt to install the Sanguino boards package using Boards Manager in Arduino IDE 1.6.11 it fails with a java.lang.NullPointerException error.
Temporary Boards Manager URL for testing: https://github.com/per1234/Sanguino/raw/add-tools-field/package_lauszus_sanguino_index.json