First time I am doing this so I am not 100% sure what I am doing

I tried the code from:
https://github.com/yanavery/MyDoorOpene ... all/master
Changed the IP and password.
Got these compile errors:
MyDoorOpener:55: error: variable or field 'output' declared void
MyDoorOpener:55: error: 'WebServer' was not declared in this scope
MyDoorOpener:55: error: 'server' was not declared in this scope
MyDoorOpener:55: error: expected primary-expression before 'char'
MyDoorOpener:55: error: expected primary-expression before 'bool'
MyDoorOpener:56: error: variable or field 'output' declared void
MyDoorOpener:56: error: 'WebServer' was not declared in this scope
MyDoorOpener:56: error: 'server' was not declared in this scope
MyDoorOpener:56: error: expected primary-expression before 'int'
MyDoorOpener:56: error: expected primary-expression before 'bool'
MyDoorOpener:133: error: 'WebServer' does not name a type
MyDoorOpener:341: error: variable or field 'output' declared void
MyDoorOpener:341: error: 'WebServer' was not declared in this scope
MyDoorOpener:341: error: 'server' was not declared in this scope
MyDoorOpener:341: error: expected primary-expression before 'char'
MyDoorOpener:341: error: expected primary-expression before 'bool'
MyDoorOpener:355: error: variable or field 'output' declared void
MyDoorOpener:355: error: 'WebServer' was not declared in this scope
MyDoorOpener:355: error: 'server' was not declared in this scope
MyDoorOpener:355: error: expected primary-expression before 'int'
MyDoorOpener:355: error: expected primary-expression before 'bool'
MyDoorOpener:362: error: variable or field 'webRequestHandler' declared void
MyDoorOpener:362: error: 'WebServer' was not declared in this scope
MyDoorOpener:362: error: 'server' was not declared in this scope
MyDoorOpener:362: error: 'WebServer' has not been declared
MyDoorOpener:362: error: expected primary-expression before 'char'
MyDoorOpener:362: error: expected primary-expression before 'bool'
Help very much appreciated.