java.lang.RuntimeException: com.oracle.truffle.r.runtime.RInternalError: not implemented: unexpected SEXPTYPE PROMSXP

[lemmy]

markus@banana:/opt/graalvm/graalvm-ce-java16-21.1.0$ head Some.csv
trace#level#P#C#B#over#under
1#4#1#1#8#1#0
1#12#2#2#256#2#0
1#11#1#1#16#1#0
1#14#2#2#256#2#0
1#17#2#2#2#1#0
2#13#2#2#32#2#0
2#21#2#2#1#1#0
1#14#2#2#4#1#0
2#56#4#4#16#4#0

data <- read.csv(header=TRUE, sep = "#", file = "Some.csv")
library(dplyr)
data %>% group_by(P,C,B) %>% summarise(mean_level = mean(level))

markus@banana:/opt/graalvm/graalvm-ce-java16-21.1.0$ uname -a
Linux banana 5.8.0-59-generic #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
markus@banana:/opt/graalvm/graalvm-ce-java16-21.1.0$ bin/java -version
openjdk version "16.0.1" 2021-04-20
OpenJDK Runtime Environment GraalVM CE 21.1.0 (build 16.0.1+9-jvmci-21.1-b05)
OpenJDK 64-Bit Server VM GraalVM CE 21.1.0 (build 16.0.1+9-jvmci-21.1-b05, mixed mode, sharing)

fastr_errors_pid106142.log

[Akirathan]

Hi Lemmy, thanks for the report. This is a well-known bug. As noted in CHANGELOG.md, we recently switched to a newer version of MRAN snapshot, which contains dplyr version 1.0.3, and support for this version of dplyr is a work in progress.

[nikola-arcadis]

When can can we expect this to be fixed? dplyr library is quite commonly used. It's been a year opened.

[Akirathan]

Hi @nnikolic-arcadis, thanks for the notification. I am currently working on a PR that fixes this issue, I expect it to be merged within 2 weeks. Once it is merged, I will close this issue. Note, however, that dplyr will not be fully supported, i.e., on my PR, many dplyr tests run successfully, but there are dozens that are ignored because of other compatibility issues with FastR.

[nikola-arcadis]

Thanks for the update. Looking forward to see stable and production ready release.

[steve-s]

Hello @nnikolic-arcadis,

please note that @Akirathan's work will only fix this specific issue. We have limited resources and pushing for more complete compatibility with this dplyr version is not at the top of our list at this point. Regarding stable and production ready release of FastR, there is still significant amount of work to reach this goal, so there are no immediate plans for a production release.

[nikola-arcadis]

I understand. Thanks for the effort.