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Warning message is displayed when using TypeScript 2.9.2 #11665
Description
Angular version 6.1.0 support typescript 2.9. But when I change typescript dependency in package.json. This warning is shown.
@angular/compiler-cli@6.1.0 requires typescript@'>=2.7.0 <2.8.0' but 2.9.2 was found instead.
Using this version can result in undefined behaviour and difficult to debug problems.
Please run the following command to install a compatible version of TypeScript.
npm install typescript@'>=2.7.0 <2.8.0'
To disable this warning run "ng config cli.warnings.typescriptMismatch false".
Bug Report or Feature Request (mark with an x)
- [x] bug report -> please search issues before submitting
- [ ] feature request
Command (mark with an x)
- [ ] new
- [ ] build
- [x] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc
Versions
node --version
v8.9.4
npm --version
6.2.0
ng --version
Angular CLI: 6.1.0
Node: 8.9.4
OS: darwin x64
Angular: 6.1.0
... animations, bazel, cli, common, compiler, compiler-cli, core
... forms, http, language-service, platform-browser
... platform-browser-dynamic, router
Package Version
-----------------------------------------------------------
@angular-devkit/architect 0.7.0
@angular-devkit/build-angular 0.7.0
@angular-devkit/build-optimizer 0.7.0
@angular-devkit/build-webpack 0.7.0
@angular-devkit/core 0.7.0
@angular-devkit/schematics 0.7.0
@ngtools/webpack 6.1.0
@schematics/angular 0.7.0
@schematics/update 0.7.0
rxjs 6.2.2
typescript 2.9.2
webpack 4.9.2
Repro steps
- Create new angular project
ng new testNg61 - Change typescript version in
package.jsonto 2.9.2 - Run
npm i - Run
ng serve
The log given by the failure
@angular/compiler-cli@6.1.0 requires typescript@'>=2.7.0 <2.8.0' but 2.9.2 was found instead.
Using this version can result in undefined behaviour and difficult to debug problems.
Please run the following command to install a compatible version of TypeScript.
npm install typescript@'>=2.7.0 <2.8.0'
To disable this warning run "ng config cli.warnings.typescriptMismatch false".
Desired functionality
Serve correctly without showing the warning
Mention any other details that might be useful
versionCombos variable in node_modules/@angular/cli/upgrade/version.js seem not being built correctly. The codes in upgrade/version.ts file seem correct.
Reacted by Vincenzo, Michał Gołębiowski-Owczarek, Max-Richard Barz, Slava, agil-NUBBA, Claudiu Hojda, Vivien Zoonekynd, Claire, Steve Hipwell, Michael Kriese and 20 more
Activity
gkalpak commentedon Jul 26, 2018
Related: angular/angular#25141
fix(@angular/cli): use correct compiler version range
kylecordes commentedon Jul 26, 2018
As I recall from the last time there was such an upgrade, for various legacy reasons the compatibility version check is implemented in CLI, with the code of that understands the version relationship compiled into CLI (or dev kit). So they will need to be a CLI update to understand that a new range of Angular versions is compatible with the new range of TypeScript versions.
So we are just a bit patient, likely the next new CLI version should understand the new versions, and contain any other needed tweaks to make it all run smoothly.
fix(@angular/cli): use correct compiler version range
fix(@angular/cli): use correct compiler version range
sarunint commentedon Jul 26, 2018
@sundarchi1 Yes, it does fix the issue when you already upgraded to TypeScript 2.9. The issue you've just raised is a separated issue in which Angular CLI generates TypeScript 2.7 as default.
As for that issue, #11669 is pending.
micksatana commentedon Jul 27, 2018
@sundarchi1 I tested on my local. the fix is complete. when change version to 2.9.2, no warning display.
sebek64 commentedon Aug 3, 2018
Although this is probably not a big problem, I see that @schematics/angular@0.7.2 still has a dependency on typescript < 2.8. It installs a separate copy of typescript, so it is compatible with global typescript in version 2.9.
angular-automatic-lock-bot commentedon Sep 8, 2019
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fix(@angular/cli): use correct compiler version range