Power bi custom visual - Blank after cloning from GitHub Repo

[Anonymous]

Hi All, 

I am trying to clone a GitHub Repo to local VS Code and adding other attributes to the existing project. I followed the following steps:

git:clone https://github.com/microsoft/powerbi-visuals-gantt.git in VS Code(use Gantt as example)

npm install

pbiviz start

And there is an error below saying missing a file, I didn't find that file so I deleted the line in pbiviz.json refering to that.

After deleting that, I can run pbiviz start with no errors, but the visual stays blank even I put data in that. I wonder which step I did was wrong.

Anyone has the idea what happened? I would really appreciate your opinions:)

pbiviz start errordeleted the dependencies lineNo error after deleting that lineblank visual

[Anonymous]

Hi, I find some clue, I think it's because the API version of gantt chart is 1.13.0, I tried with other samples like forcegraph with API version(2.3.0) and it worked fine. 

So my question is, does anyone have clue about how to upgrade the API version of existing project? I tried "pbiviz update 2.3.0", but the visual still stays blank.