yarn lint local vs remote inconsistency

[erights]

#2773 is only a README change , and so is representative of master at that time. It's lint check succeeds under CI but locally fails with

$ cd packages/assert/
$ yarn lint
yarn run v1.22.5
$ yarn lint:types && yarn lint:eslint
$ tsc -p jsconfig.json
src/types.js:1:1 - error TS6200: Definitions of the following identifiers conflict with those in another file: BaseAssert, AssertMakeError, AssertFail, AssertEqual, AssertTypeofBigint, AssertTypeofBoolean, AssertTypeofFunction, AssertTypeofNumber, AssertTypeofObject, AssertTypeofString, AssertTypeofSymbol, AssertTypeofUndefined, AssertTypeof, AssertString, AssertNote, DetailsToken, Details, StringablePayload, AssertQuote, Raise, MakeAssert, DetailsTag, Assert

1 // @ts-check
  

  ../../../../endojs/endo/packages/ses/src/error/types.js:1:1
    1 // @ts-check
      
    Conflicts are in this file.

../../../../endojs/endo/packages/ses/src/error/types.js:1:1 - error TS6200: Definitions of the following identifiers conflict with those in another file: BaseAssert, AssertMakeError, AssertFail, AssertEqual, AssertTypeofBigint, AssertTypeofBoolean, AssertTypeofFunction, AssertTypeofNumber, AssertTypeofObject, AssertTypeofString, AssertTypeofSymbol, AssertTypeofUndefined, AssertTypeof, AssertString, AssertNote, DetailsToken, Details, StringablePayload, AssertQuote, Raise, MakeAssert, DetailsTag, Assert

1 // @ts-check
  

  src/types.js:1:1
    1 // @ts-check
      
    Conflicts are in this file.


Found 2 errors.

error Command failed with exit code 2.

To fix that failure while working on #2769 at 0346c2e I delete the redundant types.js file and change agoric-sdk's assert.js from importing it to instead saying

/// <reference types="ses"/>

This fixes the yarn lint error locally, but causes the lint check to fail under CI as seen at
https://github.com/Agoric/agoric-sdk/pull/2769/checks?check_run_id=2240480256
The failure is

Cannot find name 'Assert'.

which makes sense if CI cannot dereference

/// <reference types="ses"/>

but my local environment can. However, I have no idea where to look for that difference.

[erights]

As @dtribble suggested, once I cleared all caches and rebuilt my world, this problem went away. The current state works both locally and under CI. Closing.