What should I do?
Hello @yhl5285627,
It appears you are missing to download the Appinventor blockly and Google closure submodules, please run the following command to download them:
git submodules --init
And then rebuild.
1 Like
Show you code
I merged your topics
It looks like you may have modified one or more of the message files in the blocklyeditor sources. The error indicates that the modified file violates the JSON syntax.