src/session.ts(241,5): error TS7027: Unreachable code detected.

[kisnalam]

C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services>npm install

jupyter-js-services@0.5.4 prepublish C:\Users\IBM_ADMIN\Documents\GitHub\jupyt
er-js-services
npm run build

jupyter-js-services@0.5.4 build C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js
-services
npm run build:src && npm run build:test

jupyter-js-services@0.5.4 build:src C:\Users\IBM_ADMIN\Documents\GitHub\jupyte
r-js-services
tsc --project src

src/session.ts(241,5): error TS7027: Unreachable code detected.

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs
node_modules\npm\bin\npm-cli.js" "run" "build:src"
npm ERR! node v5.7.1
npm ERR! npm v3.6.0
npm ERR! code ELIFECYCLE
npm ERR! jupyter-js-services@0.5.4 build:src: tsc --project src
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the jupyter-js-services@0.5.4 build:src script 'tsc --project
src'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the jupyter-js-services p
ackage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! tsc --project src
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs jupyter-js-services
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls jupyter-js-services
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services\npm-debug.l
og

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs
node_modules\npm\bin\npm-cli.js" "run" "build"
npm ERR! node v5.7.1
npm ERR! npm v3.6.0
npm ERR! code ELIFECYCLE
npm ERR! jupyter-js-services@0.5.4 build: npm run build:src && npm run build:te st
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the jupyter-js-services@0.5.4 build script 'npm run build:src
&& npm run build:test'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the jupyter-js-services p
ackage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! npm run build:src && npm run build:test
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs jupyter-js-services
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls jupyter-js-services
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services\npm-debug.l
og

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs
node_modules\npm\bin\npm-cli.js" "install"
npm ERR! node v5.7.1
npm ERR! npm v3.6.0
npm ERR! code ELIFECYCLE
npm ERR! jupyter-js-services@0.5.4 prepublish: npm run build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the jupyter-js-services@0.5.4 prepublish script 'npm run buil
d'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the jupyter-js-services p
ackage,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! npm run build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs jupyter-js-services
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls jupyter-js-services
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services\npm-debug.l
og

my node version:
C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services>node -v
v5.7.1
C:\Users\IBM_ADMIN\Documents\GitHub\jupyter-js-services>npm -v
3.6.0

[blink1073]

Thanks @kisnalam, I had not yet used TypeScript 1.8 on this project, see #103 for the fix.

[blink1073]

I just released jupyter-js-services@0.5.5 with the patch.

[jasongrout]

For the record, it seems that TS 1.8 solves similar problems: microsoft/TypeScript#1613 (comment)

[jasongrout]

A more relevant issue: microsoft/TypeScript#7588