Demo failed to launch

[shj37]

I had this error:
(In your folder, the structure is "\teaspn\client\src\extension", even after I changed it to "d:\teaspn\client\out\extension" and also tried to change "main": "./client/out/extension" in package.json to "main": "./client/src/extension", the demo still failed to launch.)

Activating extension teaspn.teaspn-sdk failed: Cannot find module 'd:\teaspn\client\out\extension' extensionHostProcess.js:474 Here is the error stack: Error: Cannot find module 'd:\teaspn\client\out\extension' at Function.Module._resolveFilename (internal/modules/cjs/loader.js:602:15) at Function.Module._load (internal/modules/cjs/loader.js:528:25) at Function.define._installInterceptor.i._load (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:486:42) at Function.t._load (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:750:857) at Function.t.getExtensionPathIndex.then.i._load (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:676:176) at Module.require (internal/modules/cjs/loader.js:658:17) at require (internal/modules/cjs/helpers.js:20:18) at Function.i [as __$__nodeRequire] (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\loader.js:31:542) at c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:737:450 at I._doActivateExtension (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:737:558) at I._activateExtension (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:736:404) at I.<anonymous> (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:733:330) at Generator.next (<anonymous>) at n (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:13:388) at new Promise (<anonymous>) at n (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:13:165) at Object.actualActivateExtension (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:733:32) at p._activateExtension (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:474:561) at define._activateExtensions.r.length.Promise.all.o.map.e (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:474:245) at Array.map (<anonymous>) at p._activateExtensions (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:474:233) at p.activateByEvent (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:472:126) at I._activateByEvent (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:735:69) at define.$activateByEvent._readyToRunExtensions.wait.then.t (c:\Users\ju\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:743:221) at process._tickCallback (internal/process/next_tick.js:68:7)

I am using windows 10, also have anaconda installed. Thank you.