We can’t reproduce your problem, the Arduino TFT-eSPI board-template downloading works correctly in our Windows 10 environment as of SLS-v1.3.3. This is not a SquareLine Studio issue.
A lot of tips are give in the above posts, maybe one of them solves your problem. One of the best tips is to do it manually:
- step 1: Download and copy the Arduino TFT_eSPI board-template files as a zip package from GitHub
- step 2: Create an ‘Arduino’ folder in: C:\Users\USERNAME\Documents\SquareLine\boards.
- step 3: Create an ‘arduino_tft_espi_v1_1_1’ folder inside the just-created ‘Arduino’ folder.
- step 4: Extract the content of the ‘board_arduino_tft_espi-1.1.1’ folder of the downloaded zip-package inside this folder.
- step 5: Compress the
__ui_project_name__folder into an archive called ‘arduino_tft_espi.zip’ (so it has the same filename before the extension as that of the .slb file)
(Note: all the other boards can be installed manually like this.)