Not compiling for IOS in latest version

[vcrepin]

Hello. I'm using the latest version of ionic framework and this plugin does not compile for IOS. Here are the errors:

/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:39:28: error: no visible @interface for 'CDVPluginResult' declares the selector 'toSuccessCallbackString:'
jsString = [result toSuccessCallbackString:callbackId];
~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~
/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:43:28: error: no visible @interface for 'CDVPluginResult' declares the selector 'toErrorCallbackString:'
jsString = [result toErrorCallbackString:callbackId];
~~~~~~ ^~~~~~~~~~~~~~~~~~~~~
/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:46:11: error: no visible @interface for 'PowerManagement' declares the selector 'writeJavascript:'
[self writeJavascript:jsString];
~~~~ ^~~~~~~~~~~~~~~
/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:63:28: error: no visible @interface for 'CDVPluginResult' declares the selector 'toSuccessCallbackString:'
jsString = [result toSuccessCallbackString:callbackId];
~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~
/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:67:28: error: no visible @interface for 'CDVPluginResult' declares the selector 'toErrorCallbackString:'
jsString = [result toErrorCallbackString:callbackId];
~~~~~~ ^~~~~~~~~~~~~~~~~~~~~
/Users/vincentcrepin/ionicProjects/BlitzClock/platforms/ios/BlitzClock/Plugins/at.gofg.sportscomputer.powermanagement/PowerManagement.m:70:11: error: no visible @interface for 'PowerManagement' declares the selector 'writeJavascript:'
[self writeJavascript:jsString];

[cranberrygame]

@vcrepin

Fixed the issue.
Thanks