Can't Find Contract - Symlink Doesn't Work on Windows!

[Rangel Stoilov]

Hello,
after the recent commits the react box is not working on windows.

After compiling and running 'npm run start' from the client folder I get the following error:
(This was not mentioned in the official documentation but in the repository of the new contributor - https://github.com/adrianmcli/truffle-react )

After I ran the client i got this error:

Failed to compile ./src/App.js Module not found: Can't resolve './contracts/SimpleStorage.json' in 'F:\reactBox\client\src'

I understand that the issue is the creation of a symlink and so I tried running the 'npm run link-contracts:win32' with no luck.

It gave me an error.

I can confirm that this commit is working properly -> https://github.com/truffle-box/react-box/tree/9fb7ed6c0253c71b574bf160072bc7eb9fdd0336

How can I fix this? And if it can't be fixed is there a way to use truffle unbox to deploy the above commit directly?

[Rangel Stoilov]

OK... after more than 2 hours of digging around here are the issues of the latest commit and how to fix them:

• On Windows symlink does not work properly so we get an error module not found
  If you are on windows you need run npm run link-contracts:win32 before running npm run start. However, there is an error in the command in this commit. Replace the command with this:
  "link-contracts:win32": "cd src && mklink /D contracts ..\\..\\build\\contracts"
  (the /D was \\D)

• We have a missing dependency bignumber.js
  Go inside the client folder and run npm i --production bignumber.js or just add "bignumber.js": "^7.2.1" to the dependencies inside package.json

• The npm run start does not work
  The command should be ran from the client folder. The README.md file is out of date.

Hope this helps someone. I don't know what was so bad with the previous commit that we had to change the whole structure.

[TS]

Hi Rori4,

I am trying the same as npm run "link-contracts:win32": "cd src && mklink /D contracts ..\..\build\contracts"
or npm run link-contracts:win32: cd src && mklink /D contracts ..\..\build\contracts

It still doesn't work. Do you mean to change the command in some script?

[Benjamin Stanley]

In cmd (Run as administrator), go to your /client/src file and simply run
mklink /D contracts ..\..\build\contracts

[Adrian Fletcher]

@benjamistan this worked for me! Thanks

[michaelseemichaeldo]

@benjamistan when I enter your command it says "Cannot create a file when that file already exists."

[Adrian Li]

Symlink should no longer be required!

This is because we are now using the contracts_build_directory setting here:

contracts_build_directory: path.join(__dirname, "client/src/contracts")

This ensures that the build artifacts are sent to the contracts folder inside the src folder in the React app.