[R-pkg-devel] R package check stuck on “checking use of S3 registration …”

[Evan Biederstedt]

Hi there

Creating an R package here which I plan to upload to CRAN. Upon checking
the tarball created with `R CMD BUILD`, I try to use `R CMD CHECK` as
follows:

```
R CMD CHECK my_package.tar.gz --as-cran
```

This normally works smoothly. However, in this case, it is stuck on
`checking use of S3 registration` and has been there for several hours.
I've never experienced this before; here's the partial output I see:


```
...
 * checking package subdirectories ... OK
 * checking R files for non-ASCII characters ... OK
 * checking R files for syntax errors ... OK
 * checking whether the package can be loaded ... OK
 * checking whether the package can be loaded with stated dependencies ...
OK
 * checking whether the package can be unloaded cleanly ... OK
 * checking whether the namespace can be loaded with stated dependencies
... OK
 * checking whether the namespace can be unloaded cleanly ... OK
 * checking use of S3 registration ...
 ```

(1) What does `checking use of S3 registration` really mean?

(2) More importantly, why could it be stuck here? How could I fix this
issue?

Any insight or help greatly appreciated. Thanks!

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