Error: [$interpolate:noconcat] Error while interpolating: {{url}}{{item.imageurl}}
Strict Contextual Escaping disallows interpolations that concatenate multiple expressions when a trusted value is required.  See 

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       process.nextTick(function() { throw err; })

                                      ^

MongoError: Error connecting to database: connection 1847 to localhost:27017 closed

    at Function.MongoError.create (/node_modules/m

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MEAN stack issue

(node) warning: possible EventEmitter memory leak detected. 11 reconnect listeners added. Use emitter.setMaxListeners() to increase limit.

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Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file

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guard init phantomjs-jasmine ERROR - Error is: No such file or directory @ rb_sysopen

RubyDep: WARNING: Your Ruby is outdated/buggy. (To disable warnings, set RUBY_DEP_GEM_SILENCE_WARNINGS=1)
RubyDep: WARNING: Your Ruby is: 2.3.0 (buggy). Recommendation: install 2.3.1.
21:47:06 - INFO - Writing new Guardfile to C:/Users/Guardfile
21:47:06 - INFO - Run 'gem install win32console' to use color on Windows
21:47:06 - ERROR - Could not load 'guard/phantomjs-jasmine' or '~/.guard/templates/phantomjs-jasmine' or find class Guard::Phantomjsjasmine
21:47:06 - ERROR - Error is: No such file or directory @ rb_sysopen - C:/Users/.guard/templates/phantomjs-jasmine

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gem install guard-livereload on windows machine

gem install guard-livereload
ERROR:  Error installing guard-livereload:
        The 'http_parser.rb' native gem requires installed ........


use


gem install guard guard-livereload wdm

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Ionic framework- facebook login- ReferenceError: Can't find variable: $q

I got an issue after integrating facebooking login,
for first time, app redirecting to facebook login and getting profile data , but second time, throwing this issue.

ReferenceError: Can't find variable: $q

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