synchronize
                                
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                                    synchronize copied to clipboard
                            
                            
                            
                        synchronize library conflicts [email protected]
+1, although it is not [email protected], but [email protected] instead:
npm ERR! code ELIFECYCLE                                                                                                                                                                                           
npm ERR! errno 1                                                                                                            
npm ERR! [email protected] install: `node build.js || nodejs build.js`                                                                                                                         
npm ERR! Exit status 1                                                                                                                                                                     
npm ERR!                                                                                                 
npm ERR! Failed at the [email protected] install script.                                                                                                                                                               
npm ERR! This is probably not a problem with npm. There is likely additional logging output above. 
On the other side, fibers is currently at 3.1.1, so obviously synchronize needs to properly synchronize with fibers
However, having looked at the module code, it seems that it's being maintained, but not published.
Last publish was done over a year ago, and in the meantime package.json updated the dependency (fibers to 3.x), but not the version (still 2.0.0).
Gave up on synchronize and used deasync instead.
Any chance on a new release including the fibers dependency upgrade?
Use a fork like https://www.npmjs.com/package/synchronize_f2