QCustomPlot Discussion and Comments

C2143: syntax error : missing ';' before '*'
C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C2065: 'widget' : undeclared identifier
C2061: syntax error : identifier 'QcustomPlot'
C2065: 'widget' : undeclared identifier
C2227: left of '->setObjectName' must point to class/struct/union/generic type
type is ''unknown-type''
C2065: 'widget' : undeclared identifier
C2227: left of '->setGeometry' must point to class/struct/union/generic type
type is ''unknown-type''

Better if you post part of your code with errors here.

I didnt write any code yet, just started new application and trying to configure qcustomplot as mentioned in the 'Setting Up' tutorial.

Please tell which compiler you use, which operating system, which Qt version, and how you use them, step by step (also setting up Qt).