angular 9 library publish error "Trying to publish a package that has been compiled by Ivy"

angular angular-cli angular-library angular-cli-v9
Aniruddha Das picture Aniruddha Das · Feb 14, 2020 · Viewed 10.5k times · Source

I migrated my angular 8.x.x project to angular 9.x.x and when I try to publish my library, it fails with below error

npm ERR! @candiman/[email protected] prepublishOnly: node --eval "console.error('ERROR: Trying to publish a package that has been compiled by Ivy. This is not allowed.\nPlease delete and rebuild the package, without compiling with Ivy, before attempting to publish.\n')" && exit 1

is there anything changed in the angular 9

Answer

Aniruddha Das picture Aniruddha Das · Feb 14, 2020

using --prod option while building the library fixed my issue

ng build yourLibraryName --prod

Related questions

'rootDir' is expected to contain all source files

I have an Angular CLI workspace containing two library projects, foo and bar. When I build the second of the two libraries, foo, the build fails with the following error: error TS6059: File '/code/projects/bar/src/lib/types.…

Read More
Include assets when building angular library

I am building a library which contains a custom icon font. However, when I build my library using ng build <library-name> --prod, the assets folder is not included in the build, which means icons do not show up …

Read More
Could not find module "@angular-devkit/build-angular"

After updating to Angular 6.0.1, I get the following error on ng serve: Could not find module "@angular-devkit/build-angular" from "/home/Projects/myProjectName". Error: Could not find module "@angular-devkit/build-angular" from "/home/Projects/myProjectName". at Object.resolve (/home/Projects/myProjectName/node_…

Read More