Unable to run 'update-angular-config-v12' migration

Current Behavior

Unable to run nx migrate --run-migrations from Angular 11 to 12. Migration name = update-angular-config-v12.

Expected Behavior

Run nx migrate --run-migrations without errors

Steps to Reproduce

We upgarded our nx version from 11.0 to 11.6 without issues. We then upgraded nx from 11.6 to 12.0 without issue. Upgrading from 12.0 to 12.5 introduced the error when running migration update-angular-config-v12. Run npm install Run nx migrate --run-migrations

Yes

I get a 403 when trying to push a branch up: remote: Permission to nrwl/nx-examples.git denied to labeled. fatal: unable to access ‘https://github.com/nrwl/nx-examples.git/’: The requested URL returned error: 403

https://github.com/labeled/nx-examples

Failure Logs

Running migration update-angular-config-v12
PropertyNameExpected in JSON at position 65188
ui\node_modules\yargs\build\lib\yargs.js:1043:55)      c.voyager.web-ui\node_modules\yargs\build\lib\yargs.js:1132
    at Object.get [as argv] (C:\PIT\Source\Repos\altec.voyager-11\altec.voyager\altec.voyager.web-ui\node_modules\yargs\build\lib\yargs.js:986:25)
    at Object.initLocal (C:\PIT\Source\Repos\altec.voyaTemp\tmp-12680-7DyKGaFdpbMG\node_modules\.bin\tao migrate --run-migrationsger-11\altec.voyager\altec.voyager.web-ui\node_modules\@nrwl\cli\lib\init-local.js:25:79)
    at Object.<anonymous> (C:\PIT\Source\Repos\altec.vor-11\altec.voyager\altec.voyager.web-ui\node_modules\@nrwl\workspace\src\command-line\nx-commands.js:89:25)yager-11\altec.voyager\altec.voyager.web-ui\node_moduleager-11\altec.voyager\altec.voyager.web-ui\node_modules\yargs\build\lib\command.js:197:48)s\@nrwl\cli\bin\nx.js:43:18)                           Repos\altec.voyager-11\altec.voyager\altec.voyager.web-ui\node_modules\yargs\build\lib\yargs.js:1043:55)
    at Module._compile (internal/modules/cjs/loader.js:voyager-11\altec.voyager\altec.voyager.web-ui\node_modules\yargs\build\lib\yargs.js:986:25)1063:30)                                               ger-11\altec.voyager\altec.voyager.web-ui\node_modules\@nrwl\cli\lib\init-local.js:25:79)
    at Object.Module._extensions..js (internal/modules/yager-11\altec.voyager\altec.voyager.web-ui\node_modules\@nrwl\cli\bin\nx.js:43:18)cjs/loader.js:1092:10) {                               1063:30)
  status: 1,                                           cjs/loader.js:1092:10) {
  signal: null,
  output: [ null, null, null ],
  pid: 5456,
  stdout: null,
  stderr: null
}

Environment

NX Report complete - copy this into the issue template

Node : 14.16.0 OS : win32 x64 npm : 7.16.0

nx : Not Found @nrwl/angular : 12.5.0 @nrwl/cli : 12.5.0 @nrwl/cypress : 12.5.0 @nrwl/devkit : 12.5.0 @nrwl/eslint-plugin-nx : 12.5.0 @nrwl/express : Not Found @nrwl/jest : 12.5.0 @nrwl/linter : 12.5.0 @nrwl/nest : Not Found @nrwl/next : Not Found @nrwl/node : Not Found @nrwl/react : Not Found @nrwl/schematics : Not Found @nrwl/tao : 12.5.0 @nrwl/web : Not Found @nrwl/workspace : 12.5.0 @nrwl/storybook : 12.5.0 @nrwl/gatsby : Not Found typescript : 4.2.4

[SergeyCherman]

FYI a similar error happened to me and the root cause was I had a trailing comma in one of my objects in the angular.json. Removing it fixed the issue.

[SergeyCherman]

I found my issue by adding more logs to the place in nx where exception is thrown. IE in the below file you can add more logs like for example logging the input object such that you know which object is causing the issue:

at Object.parseJson (C:\Users\tlpeters\AppData\Local\Temp\tmp-25916-9dryXxItnHgp\node_modules@nrwl\tao\src\utils\json.js:30:15)