Error while starting workers locally

hello, i try to use temporal from typescript.
i can start temporal server, but when trying to start workers there is always error:
'ypeError: Invalid address for Temporal gRPC endpoint: expected URI of the form ‘hostname’ or ‘hostname:port’; got 'localhost:7233
at normalizeTemporalGrpcEndpointAddress (/home/webdev/sot.keitaro/node_modules/@temporalio/common/src/internal-non-workflow/parse-host-uri.ts:96:11)
at compileConnectionOptions (/home/webdev/sot.keitaro/node_modules/@temporalio/worker/src/connection-options.ts:85:50)
at Runtime.createNativeClient (/home/webdev/sot.keitaro/node_modules/@temporalio/worker/src/runtime.ts:341:59)

Are you able to run samples?