Error during import 19MB dll file

About 20 hours after I started importing the 19MB dll file with ghidra, the following error was displayed and stuck. Failed to markup CustomAttribute: Cannot invoke "ghidra.app.util.bin.format.pe.cli.blobs.CliAbstractSig$CliElementType.name()" because the return value of "ghidra.app.util.bin.format.pe.cli.blobs.CliBlobCustomAttrib$CliNamedArg.getFieldOrPropType()" is null It stuck the same when I imported it before. There was no change when I waited for more than 3 hours.

[ghidra1]

I have added some performance improvements which will greatly improve the performance of the import based on the test.dll sample. The changes optimize certain structure build-up and resolution cases. This change is targeted for 10.2.1 release. The import of your test.dll sample completed in 2-minutes with my changes in place. There are additional .NET related improvements needed but I am uncertain when these will be completed.

My focus for my change was performance related only. I did not observe the errors you noted, although there are numerous other warnings produced which I did not look into.

[ghidra1]

It appears there may be excessive reuse of the same datatype name within complex structures generated by the CLI processing code. During the resolve process with a deep nesting, encountering the same datatype path multiple times with different definitions can cause a cyclic dependency error.