>> + tsc >> src/promisify.ts(27,15): error TS2345: Argument of type 'Duplex | >> Pick<Agent, "addRequest"> | Agent | undefined' is not assignable to >> parameter of type 'Duplex | Pick<Agent, "addRequest"> | Agent | >> PromiseLike<AgentCallbackReturn>'. >> Type 'undefined' is not assignable to type 'Duplex | Pick<Agent, >> "addRequest"> | Agent | PromiseLike<AgentCallbackReturn>'. >> dh_auto_build: error: cd ./agent-base && sh -ex >> ../debian/nodejs/agent-base/build returned exit code 2 >> make[1]: *** [debian/rules:15: override_dh_auto_build] Error 25
Same error than with node-rxjs: typescript update breaks many builds. Ref: https://devblogs.microsoft.com/typescript/announcing-typescript-4-1/#breaking-changes