I've tried building scratch-blocks with Windows, WSL and Raspberry Pi OS, but I wasn't able to successfully build it. Does anyone know how to build scratch-blocks and link it to the GUI? Here is some discussion from the modding Scratch 3 thread after using WSL.

samq64 wrote:

kccuber wrote:

samq64 wrote:

kccuber wrote:

samq64 wrote:

I tried installing scratch-blocks with WSL and it still didn't work.

SUCCESS: blockly_uncompressed_horizontal.js
SUCCESS: blockly_uncompressed_vertical.js
FATAL ERROR
Required namespace "goog.events.EventWrapper" never defined.
??? at line 57:
goog.requireType('goog.events.EventWrapper');
^

I successfully built scratch-blocks with WSL after adding

goog.require('goog.debug.ErrorHandler');
goog.require('goog.events.EventLike');
goog.require('goog.events.EventWrapper');

to /core/blockly.js.

I had the EXACT SAME ERROR. Delete scratch-blocks and reclone from https://github.com/LLK/scratch-blocks.git (Keep the .git at the end)

Now it's broken again…

whut
ok did you remember to npm/yarn link

What I meant was that npm install was successful after I modified blockly.js, but the editor was crashing, so I cloned scratch-blocks again with .git at the end (I'm cloning TurboWarp's repos, not LLK's) and got the same error I posted above. After re-adding the blockly.js changes and running npm start, the code editor crashes with the same error I got yesterday, which is

lazy scratch-blocks: TypeError: goog.isString is not a function

Edit: I fixed that one, but now I'm getting another similar error:

lazy scratch-blocks: TypeError: goog.isFunction is not a function

kccuber wrote:

samq64 wrote:

The errors never end!

Oops! Something went wrong.

We are so sorry, but it looks like TurboWarp has crashed. Please refresh your page to try again.

lazy scratch-blocks: Error: Field "function(a,b){this.size_=new goog.math.Size(0,0);this.class_=b;this.setValue(a)}" must have a fromJson function

Uhh…. Delete the whole thing, try again, using these links for git cloning:

git clone --depth=1 https://github.com/TurboWarp/scratch-gui.git

git clone https://github.com/TurboWarp/scratch-blocks.git

git clone https://github.com/TurboWarp/scratch-vm.git

goog.require('goog.debug.ErrorHandler');
goog.require('goog.events.EventLike');
goog.require('goog.events.EventWrapper');

goog.require('goog.debug.ErrorHandler');
goog.require('goog.events.EventLike');
goog.require('goog.events.EventWrapper');

Actually, the correct way is to install default-jre on WSL Ubuntu, which fixes this odd bug. Had this issue today and the default-jre fixed it.

hacktronics wrote:

I had build it 2 days back only, for https://ide.codeskool.cc/, and documented my observation at: https://github.com/LLK/scratch-blocks/issues/2734. Hope that would be useful for anyone.

Thanks! It turns out I was using the wrong version of the closure-library.

kccuber wrote:

Actually, the correct way is to install default-jre on WSL Ubuntu, which fixes this odd bug. Had this issue today and the default-jre fixed it.

Thank you! That fixed everything! (By the way, I'm not using WSL anymore because I switched to using a raspberry Pi)

Edit: Oops, I didn't realize I was logged in to my sibling's account.