Cannot create a component as it is not registered with a factory

UVM
1

Hi
When I try running a test, i get an error "Cannot create a component of type TEST_DIR_PATH/test_name> because it is not registered with the factory ".
The test is registered with the factory `uvm_components_utils(“testclass name”)

What can be the possible reason for the error?

Thanks

2

When you register a component with the factory, you do not enclose the class name with quotes.

You should use `uvm_component_utils(testclass_name) (note no quotes).

Also, the error message seems to indicate that you are possibly including a path with the test name? You should specify only the class name with +UVM_TESTNAME (i.e. +UVM_TESTNAME=testclass_name).

–Chuck

3

In reply to cgales:

Hi
The quotes was a mistake in the post. I have not used quotes.
If i do not mention the path of the test in the makefile, how will it know where to pick up tests from ?
Am new to UVM. Even if i do not mention the testname but just the testclass name(ie.if the name of my test is test1.sv and the name of the class is test1 , i include only the testclass name +UVM_TESTNAME = test1) ,I get the same error.

UVM WARNING Cannot create a component of type ‘test1’ because it is registered with the factory
UVM FATAL Requested test from command line +UVM_TESTNAME = test1 was not found.

4

In reply to meenu2k11:

I think you needn’t create the test. Once you register with fatory, just need to call run_test.

5

Have you imported the package containing the test class into your top level testbench module?

This is one of the common causes of the problem you describe.

1 Like
6

In reply to mperyer:

Hi
I tried importing the package into the test top. The not registered with the factory error is gone. But for the test which starts with

class testclass_name extends uvm_test;

I get a sytax error in the first line the error being " Syntactically this identifier appears to begin a datatype but it does not refer to a visible datatype in the current scope"

Has anyone come across this error? If yes, any clue on how to resolve it?

7

Does the package containing the class that extends uvm_test import uvm_pkg::*?

If not, then that might account for the problem.

8

Might be that you forgot 'include"filename.sv" somewhere in file
I think you should include the file in the top level using 'include" file name.sv"

9

Hey, I am facing exactly the same issue…
Did you get an answer…
I have registered the testname with factory…But dont know still why I am getting the same error!!!

10

In reply to suyog:

Things to check if you are seeing this error:

  • Your test is registered with the factory using the `uvm_component_utils()
  • Your test is part of a test package and that package is imported in your testbench at the same level that run_test() is called.
  • Your +UVM_TESTNAME=my_testname argument on the simulation command line has ‘my_testname’ match exactly what is registered above.
11

In reply to cgales:

I fixed this…
Actually the issue was uvmgen script generates some ifdefs automatically which was skipping the code of interest(factory registration).
Chagned the ifdefs and it worked.
Thanks,
Suyog

1 Like
12

In reply to suyog:

Hi

I am getting the same error though I have registered in factory & I am passing same name to +UVM_TEST_NAME.
Can anybody please help

Thanks,
Mayur

13

In reply to zala_mayur2020:

Make sure you read everything in this post and try some of the factory debug features. Debugging/BuiltInDebug | Verification Academy

14

In reply to zala_mayur2020:
Hi!
I am also getting the same error,please help!

15

In reply to Sturekha:
Make sure you read everything in this post and try some of the factory debug features. Debugging/BuiltInDebug | Verification Academy