cant build PROD

[Ross-Rawlins]

I am trying to build for PROD and I am getting the error.

Error: Error encountered resolving symbol values statically. Calling function 'makeDecorator', function calls are not supported. Consider replacing the function or lambda with a reference to an exported function, resolving symbol Injectable in /Users/rossrawlins/Desktop/Work/EngagementFactory/MobileEvent_V2.0/node_modules/@ionic/cloud-angular/node_modules/@angular/core/src/di/metadata.d.ts, resolving symbol OpaqueToken in /Users/rossrawlins/Desktop/Work/EngagementFactory/MobileEvent_V2.0/node_modules/@ionic/cloud-angular/node_modules/@angular/core/src/di/opaque_token.d.ts, resolving symbol OpaqueToken in /Users/rossrawlins/Desktop/Work/EngagementFactory/MobileEvent_V2.0/node_modules/@ionic/cloud-angular/node_modules/@angular/core/src/di/opaque_token.d.ts

How can I resolve this?

global packages:

@ionic/cli-utils : 1.4.0
Cordova CLI      : 6.5.0 
Ionic CLI        : 3.4.0

local packages:

@ionic/app-scripts              : 1.3.7
@ionic/cli-plugin-cordova       : 1.4.0
@ionic/cli-plugin-ionic-angular : 1.3.1
Cordova Platforms               : android 6.2.3 ios 4.3.1
Ionic Framework                 : ionic-angular 3.4.1

System:

Node       : v6.9.4
OS         : macOS Sierra
Xcode      : Xcode 8.2.1 Build version 8C1002 
ios-deploy : 1.9.1 
ios-sim    : 5.0.13 
npm        : 3.10.10

[StephanGieffers]

@Ross-Rawlins I had exactly the same issue.
Upgrading ionic-cloud-angular to latest version resolved the problem for me (I was still using 0.9.1 and upgraded to 0.12.0).

[Ross-Rawlins]

Yeah realised that as well I was on 0.11.0