I installed jpm using npm. The installation went fine but when I run the command "jpm" it gives the following error :
Error: Cannot find module 'any-promise'
at Function.Module._resolveFilename (module.js:336:15)
at Function.Module._load (module.js:286:25)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\external "any-promise":1:1)
at __webpack_require__ (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\webpack\bootstrap 456f197e4d17c58d630b:19:1)
at Object.<anonymous> (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\~\mz\fs.js:2:1)
at __webpack_require__ (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\webpack\bootstrap 456f197e4d17c58d630b:19:1)
at Object.<anonymous> (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\src\index.js:1:1)
at __webpack_require__ (C:\Firefox Addon\node_modules\jpm\node_modules\sign-addon\dist\webpack:\webpack\bootstrap 456f197e4d17c58d630b:19:1)