cadence encounter Sroute Warnning

[eng_ahmed_osama]

I am new in using cadence encounter i have a warnning which is

begin power routing ...
**WARN: (ENCSR-1254): Cannot find any block pin of net VDD. Check net list, or change option to include pin in given range.
**WARN: (ENCSR-1255): Cannot find any pad pin of net VDD to create pad ring. Check net list, or remove "CLASS CORE" from PORT definition in LEF file, or change option to include pin in given range.
**WARN: (ENCSR-1256): Cannot find any CORE class pad pin of net VDD. Change routing area or layer to include the expected pin, or check netlist, or change port class in LEF file.
Cannot find any AREAIO class pad pin of net VDD. Check net list, or change port class in LEF file, or change option to include pin in given range.
**WARN: (ENCSR-1254): Cannot find any block pin of net VSS. Check net list, or change option to include pin in given range.
**WARN: (ENCSR-1255): Cannot find any pad pin of net VSS to create pad ring. Check net list, or remove "CLASS CORE" from PORT definition in LEF file, or change option to include pin in given range.
**WARN: (ENCSR-1256): Cannot find any CORE class pad pin of net VSS. Change routing area or layer to include the expected pin, or check netlist, or change port class in LEF file.
Cannot find any AREAIO class pad pin of net VSS. Check net list, or change port class in LEF file, or change option to include pin in given range.


I hope if anyone know why this warnning happens and how to avoid it thanks

 

[rca]

It seems you want to connect the power net VDD&VSS to a pad to the internal ring, and the pin on the pad VDD/VSS are not with the correct CLASS.
You need to check the LEF first.

 

[eng_ahmed_osama]

please could you give me more details i make a power ring for VDD and VSS and i want to connect this rings to the globel net VDD and VSS


what i need to check in the lef file ?

 

[rca]

the class type seems to be the issue.
and please take some time to understand what you do.

 

[eng_ahmed_osama]

The problem is i am new in using encounter , i use a tutorial that make a power ring and power strips and after that connect the global net and srout to route power ring , this what i want to do .

the lef name power supply VDD and VSS

 

[eng_ahmed_osama]

It was a warning that say that VDD VSS are not defined as pins or pads in lef file , the solution i found is to uncheck every option in the sroute that route pads (block pads ,...)