For the CREATING NODEJS ACTIONS:

https://github.com/openwhisk/openwhisk-workshop/blob/master/exercises/creating_nodejs_actions/exercise.js#L9
https://github.com/openwhisk/openwhisk-workshop/blob/master/exercises/creating_nodejs_actions/exercise.js#L41
https://github.com/openwhisk/openwhisk-workshop/blob/master/exercises/creating_nodejs_actions/exercise.js#L79

Three lines check for the kind value of nodejs:6.

const uses_nodejs = (stdout.match('"kind": "nodejs:6"'))

The returned value for kind is nodejs (using an older version of wsk CLI?), not nodejs:6 (see below):

wsk action get hello-world-nodejs-delay
ok: got action hello-world-nodejs-delay
{
    "annotations": [],
    "exec": {
        "code": "function main() {\n\treturn new Promise(function(resolve, reject) {\n\t\tsetTimeout(function() {\n\t\t\tresolve({message: \"Hello World\"});\n\t\t}, 3000);\n\t});\n}\n",
        "kind": "nodejs"
    },
    "limits": {
        "logs": 10,
        "memory": 256,
        "timeout": 60000
    },
    "name": "hello-world-nodejs-delay",
    "namespace": "------------------",
    "parameters": [],
    "publish": false,
    "version": "0.0.1"
}

When I select the task "Using Action Sequences" I get the following error:

/usr/local/lib/node_modules/openwhisk-workshop/exercises/using_action_sequences/exercise.js:35
    let found_message = false
    ^^^

SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:374:25)
    at Object.Module._extensions..js (module.js:417:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Workshopper.loadExercise (/usr/local/lib/node_modules/openwhisk-workshop/node_modules/workshopper/workshopper.js:484:14)
    at Workshopper.onselect (/usr/local/lib/node_modules/openwhisk-workshop/node_modules/workshopper/workshopper.js:501:23)
    at emitThree (events.js:97:13)

I'm on an updated Ubuntu 16.04 64bit Desktop with NodeJS 4.2.6 and OpenWhisk Workshop 0.1.0.

PS:
This also doesn't switch the task, so even when I look at the Markdown file instead I cannot verify my solution with openwhisk-workshop verify.

PPS:
I just noticed that the same problem occurs for me for all following tasks as well - the previous ones work, but the ones afterwards break. This is unfortunate - I solved the sequence task on my own, but I really liked the verification to know my solution meets the requirements.

I've been using wsk for a week or so now, but when I tried the first exercise I got a failure for:

OpenWhisk namespace set incorrectly

I know for a fact its setup right.

This workshop should include an exercise for creating Docker Actions.

(Btw, I'm filing this, but will try to fix it myself too to help out - just depends on my available time today. :)

Ex 7 typo:

"This challenges involes"

should be

"This challenge involves"

For the parameters task, the help text prints this:

Request parameters are passed as an object through the first function parameter
for the runtime interface. Here's an example of using this with the NodeJS
runtime
https://github.com/openwhisk/openwhisk/blob/master/docs/actions.md#passing-parameters-to-an-action.

Default parameters for Actions can bound using the wsk command-line utility
https://github.com/openwhisk/openwhisk/blob/master/docs/actions.md#setting-default-parameters

Hopefully GitHub won't replace the Markdown...

I already suggested breaking out that task into multiple, but I'd suggest removing the Geocoding task completely as it requires a dev to go out and get a key before using the API. That's not terribly difficult, but it is a process and it's a hassle a dev doesn't want to worry about when learning OpenWhisk.

In the instructions:

string parameter (text) containing asentence

No space between "a" and "sentence".

The task for writing actions in NodeJS has you writing 3 actions, and while the first one is extremely trivial, the second and third are not. (Ok, the second is pretty easy too, but for a new user, it will be something they have to look up.) I really think they should be separate tasks.

Even if they were all really easy, my gut says NodeSchool tasks should do one thing at a time.

For the second exercise in Creating NodeJS Actions, response is missing the start and end properties.

$openwhisk-workshop verify
✓ OpenWhisk Action hello-world-nodejs exists
✓ OpenWhisk Action hello-world-nodejs returns correct message
✓ OpenWhisk Action hello-world-nodejs-delay exists
/usr/local/lib/node_modules/openwhisk-workshop/exercises/creating_nodejs_actions/exercise.js:61
      const start_time = parseInt(stdout.match(/start": (\d+)/)[1], 10)
                                                               ^

TypeError: Cannot read property '1' of null
    at /usr/local/lib/node_modules/openwhisk-workshop/exercises/creating_nodejs_actions/exercise.js:61:64
    at /usr/local/lib/node_modules/openwhisk-workshop/node_modules/shelljs/src/exec.js:180:7
    at ChildProcess.exithandler (child_process.js:194:7)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:817:16)
    at Socket.<anonymous> (internal/child_process.js:319:11)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at Pipe._onclose (net.js:469:12)

Running it manually to get response:

wsk action invoke hello-world-nodejs-delay -b
ok: invoked hello-world-nodejs-delay with id -----------------
response:
{
    "result": {
        "message": "Hello World"
    },
    "status": "success",
    "success": true
}

I ran this on a Ubuntu 14.04 VM that I use as my wsk workstation. Installation worked, and I got the initial blue menu box, but when making a selection it died on the following error when choosing an exercise:

/usr/lib/node_modules/openwhisk-workshop/exercises/setting_up_cli/exercise.js:18
exec('wsk property get --apihost', {silent: true}, (code, stdout, stderr) => {
                                                                          ^^
SyntaxError: Unexpected token =>
    at exports.runInThisContext (vm.js:73:16)
    at Module._compile (module.js:443:25)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Workshopper.loadExercise (/usr/lib/node_modules/openwhisk-workshop/node_modules/workshopper/workshopper.js:484:14)
    at Workshopper.onselect (/usr/lib/node_modules/openwhisk-workshop/node_modules/workshopper/workshopper.js:501:23)
    at EventEmitter.emit (events.js:107:17)

I was able to work around the problem by manually upgrading to Node 4, which wasn't evident on the first VM I tried, but it was when the packaged failed to install at all on another Ubuntu 14.04 box.

^^

You write "The setTimeout() JavaScript function in this case waits for twenty seconds
before calling the callback function.", but your code is

setTimeout(function() {
             resolve({ done: true });
             }, 2000);

setTimeout() takes milliseconds, so imho it should be 2s, not twenty.

The task for the delay test says this:

Create an Action (hello-world-delay-nodejs) that returns the same message after an artificial delay of one second.

This to me means it should take, AT LEAST, 1000ms, so I used this:

function main() {
return new Promise(function(resolve,reject) {
setTimeout(resolve({"message":"Hello World"}),1000);
});
}

When I tried to verify, I got:

✗ OpenWhisk Action hello-world-nodejs-delay returned response within 1000ms.

Which seems to imply it wants to return in less than 1000ms. So I changed my timeout to 100, and it didn't help.