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PHP Fatal error: Class UpdateHelperComposerPlugin contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (ComposerPluginPluginInterface::deactivate

composer update kylekatarnls/update-helper
#if doesnot work use following:
composer update --prefer-source
 
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Tagged: #PHP #Fatal #Class #UpdateHelperComposerPlugin #abstract #methods #declared #abstract #implement #remaining #methods
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1+6 =