ValueError: Unable to parse the JSON object in walkthrough.ipynb

[Yumin-gd]

Description:

I am encountering the following error while running the walkthrough.ipynb tutorial in the this project:

ValueError: Unable to parse the JSON object: ‘[#A LIST WITH LONG CODES#]’ The error is: [14:57:57] [#TVM PATH#]/tvm/src/node/serialization.cc:318: JSONReader: cannot find field predicate

The error occurs when executing this specific code block:

from tvm import meta_schedule as ms

db = ms.database.create(work_dir="log_db")
with target, db, tvm.transform.PassContext(opt_level=3):
    mod_deploy = relax.transform.MetaScheduleApplyDatabase()(mod_deploy)

I noticed that this error was previously reported and supposedly fixed in PR #42, but I am still encountering it while using TVM version 0.18.dev0.

Steps to Reproduce:

1. Clone the web-stable-diffusion repository.
2. Install TVM 0.18.dev0 from source.
3. Run the walkthrough.ipynb tutorial.

Environment:

• TVM version: 0.18.dev0
• Operating System: Ubuntu 20.04
• Python version: 3.9

Questions:

• Is this error still present in the latest versions of web-stable-diffusion and TVM?
• The tutorial instructs to checkout the TVM-Unity branch, but it seems this branch no longer exists. Should I be using the main branch instead (which is what I currently have installed)?Does it relate to the error I encountered?
• Are there any recommended workarounds or solutions for this issue?

Thank you for your assistance!