"TypeError: Cannot read property 'flags' of undefined" when using yarn plug-and-play

[macrozone]

Bug Report

i switched to yarn 2 and want to enable plug-and-play in a typescript monorepo.

i managed to run yarn 2 successfully with nodeLinker: node-module, but if i remove it to use "plug and play",
the build throws an error:

➤ YN0000: [@my/project]: TypeError: Cannot read property 'flags' of undefined
➤ YN0000: [@my/project]:     at getPropertyOfObjectType (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:47238:22)
➤ YN0000: [@my/project]:     at getPropertyOfType (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:47800:24)
➤ YN0000: [@my/project]:     at resolveESModuleSymbol (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:40994:54)
➤ YN0000: [@my/project]:     at getTargetOfNamespaceImport (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:40281:28)
➤ YN0000: [@my/project]:     at getTargetOfAliasDeclaration (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:40495:28)
➤ YN0000: [@my/project]:     at resolveAlias (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:40536:30)
➤ YN0000: [@my/project]:     at getSymbol (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:39315:38)
➤ YN0000: [@my/project]:     at resolveNameHelper (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:39554:34)
➤ YN0000: [@my/project]:     at resolveName (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:39538:20)
➤ YN0000: [@my/project]:     at resolveEntityName (/path/to/project/.yarn/cache/typescript-patch-0b90225f97-2e488dde7d.zip/node_modules/typescript/lib/tsc.js:40663:42)
➤ YN0000: [@my/project]: Process exited (exit code 1), completed in 3s 706ms

to be honest, i am not sure if its a typescript problem. The above error refers to a typescript-patch version. not sure what that is

🔎 Search Terms

• "TypeError: Cannot read property 'flags' of undefined"
• yarn "TypeError: Cannot read property 'flags' of undefined"
• yarn pnp "TypeError: Cannot read property 'flags' of undefined"

🕗 Version & Regression Information

i was unable to run it with the next version (nightly) due to some typing problem with @types/node

i tried however 4.5.3 and 4.5.2 and both showed the same problem.

🙁 Actual behavior

throws the error shown above

🙂 Expected behavior

typescript should work with yarn plug and play

[IllusionMH]

Same stack that was in issue already fixed in Nightly builds - #47348

[macrozone]

@IllusionMH yesterday i was unable to use the nightly build, I got some conflict with the https://www.npmjs.com/package/@types/node version, but i can try again

[RyanCavanaugh]

The top three frames are identical so I'm reasonably confident this is a duplicate. Please open a fresh issue if this turns out to be wrong. Thanks!