ng update - Migration failed: Unexpected token '', "{ "nam"... is not valid JSON #27052
Description
Command
update
Is this a regression?
- Yes, this behavior used to work in the previous version
The previous version in which this bug was not present was
Unsure
Description
ng update @angular/core fails from v17.0.8 to latest
Minimal Reproduction
Attempt ng update @angular/core from a project on 17.0.8
Exception or Error
with the message: Using package manager: npm Collecting installed dependencies... Found 126 dependencies. Fetching dependency metadata from registry... × Migration failed: Unexpected token '', "{ "nam"... is not valid JSON See "C:\Users\danin\AppData\Local\Temp\ng-ckaJxh\angular-errors.log" for further details. From log file:
[error] SyntaxError: Unexpected token '', "{ "nam"... is not valid JSON at JSON.parse (<anonymous>) at _buildPackageInfo (C:\Users\danin\AppData\Roaming\fnm\node-versions\v20.9.0\installation\node_modules\@angular\cli\src\commands\update\schematic\index.js:429:30) at C:\Users\danin\AppData\Roaming\fnm\node-versions\v20.9.0\installation\node_modules\@angular\cli\src\commands\update\schematic\index.js:708:53 at Map.forEach (<anonymous>) at C:\Users\danin\AppData\Roaming\fnm\node-versions\v20.9.0\installation\node_modules\@angular\cli\src\commands\update\schematic\index.js:707:27 at process.processTicksAndRejections (node:internal/process/task_queues:95:5) at async callRuleAsync (C:\Users\danin\AppData\Roaming\fnm\node-versions\v20.9.0\installation\node_modules\@angular\cli\node_modules\@angular-devkit\schematics\src\rules\call.js:77:18) Your Environment
CLI: 17.1.2 Node: 20.9.0 Package Manager: npm 10.1.0 OS: win32 x64 Angular: 17.0.8 ... animations, common, compiler, compiler-cli, core, forms ... platform-browser, platform-browser-dynamic, router, upgrade Package Version ------------------------------------------------------ @angular-devkit/architect 0.1701.2 (cli-only) @angular-devkit/core 17.1.2 (cli-only) @angular-devkit/schematics 17.1.2 (cli-only) @ngtools/webpack 17.0.9 @schematics/angular 17.1.2 (cli-only) rxjs 7.8.1 typescript 5.2.2 webpack 5.89.0 zone.js 0.14.2 Anything else relevant?
The first time I ran the command it seemed to start working. It updated the package.json and logged installing dependencies. I aborted the process with HOST + C. I thought that had potentially partially installed files and quit writing midstream. That would explain the "nam" is not valid JSON message. However, I get the exact same error on two different machines.