With stdout connection we can use [capture.output][1] function. But what about error messages?
This will of course require some form of try block. But FAIK the try block doesn't provide a way to access the string of actual error messages that were repressed.
Can anyone help me, please?
use tryCatch and conditionMessage
tryCatch(stop("oops"), error=function(err) conditionMessage(err))
Provide a reproducible example for more help.
You can use geterrmessage to retrieve the last error message:
stop("Hammer Time")
Error: Hammer Time
geterrmessage()
[1] "Error: Hammer Time\n"
Related
I am not an admin so I can't change the scopes. I can send slackr_bot messages to a channel I set up in the creation of the app in UI but doing the below does not work. Has anyone found a solution to this?
I created a txt file called: test.txt
Within that txt file it looks like this:
api_token: xxxxxxxxxxxx
channel: #channel_name
username: myusername
incoming_webhook_url: https://hooks.slack.com/services/xxxxxxxxxxx/xxxxxxxxxxxxx
Then I want to simply send a message but eventually I would like to run the function
ggslackr(qplot(mpg, wt, data=mtcars))
slackr_setup(config_file = "test.txt")
my_message <- paste("I'm sending a Slack message at", Sys.time(), "from my R script.")
slackr_msg(my_message, channel = "#channel_name", as_user=F)
Here is the error message:
Error: Join columns must be present in data.
x Problem with `id`.
Run `rlang::last_error()` to see where the error occurred.
In addition: Warning message:
In structure(vars, groups = group_vars, class = c("dplyr_sel_vars", :
Calling 'structure(NULL, *)' is deprecated, as NULL cannot have attributes.
Consider 'structure(list(), *)' instead.
Edit #2:
Okay, I learned some things regarding packages. If I had to do this over, I'd have gone to their github repo and read the issue tracker.
The reason is that it appears that slackr has a few issues related to changes in Slack's API.
And also since there has been a large updating of R (version 4.x) a lot of packages got broken.
My sense is that our issue is with a line of code inside a slackr function (slackr_util.r--iirc) that calls a dplyr join that is looking for a particular id that does not exist.
So, I'm going to watch the issue tracker and see what comes of it.
Edit: Try slackr_bot(my_message,channel = "#general")
worked as advertised!
But ggslackr continues to fail.
I'm having the same issue. I've found in another thread a debugging start:
`rlang::last_error()`
When I run that,
Backtrace:
1. slackr::slackr_msg(my_message, channel = "#general")
5. slackr::slackr_chtrans(channel)
6. slackr::slackr_ims(api_token)
8. dplyr:::left_join.data.frame(users, ims, by = "id", copy = TRUE)
9. dplyr:::join_mutate(...)
10. dplyr:::join_cols(...)
11. dplyr:::standardise_join_by(by, x_names = x_names, y_names = y_names)
12. dplyr:::check_join_vars(by$y, y_names)
So, step 8 there is a join effort by id, which I suppose this implies that 'id' is missing.
yet, if I run from github issue tracker : slackr::slackrSetup(echo=TRUE) I get the following:
{
"SLACK_CHANNEL": ["#general"],
"SLACK_USERNAME": ["slackr_brian"],
"SLACK_ICON_EMOJI": ["NA"],
"SLACK_INCOMING_URL_PREFIX": ["https://hooks.xxxxxxx"],
"SLACK_API_TOKEN": ["token secret"]
}
I'm not sure where to go from here as the issue tracker conversation makes mention of confirming webhooks going to the correct channel and becomes very user specific.
So, that's as far as I have gotten.
I try to insert new data to MySQL using RMySQL. Only for this case I always fail and always get the same warning message. The message was:
Warning message:
In value[[3L]](cond) : corrupt resultSet, missing fieldDescription
Although it just a warning, I never find my data show on MySQL.
Complete code and warning message shown as below:
Please advise any solution.
enter image description here
Oh, Please, don't forget to un-comment library(RMySQL) [ line : 1 ].
&
Please, add query in lieu of "select age from Customers". [ line : 9 ].
:)
Maybe, it'll works fine.
[ Sorry, for my bad English. ]
I'm using the package: IBrokers. It works well for me when I request historical data. Also the call to reqAccountUpdates() works well.
I am having problems with this script:
# myscript.r
.libPaths("rpackages")
library(IBrokers)
tws2 = twsConnect(2)
print('Attempting BUY')
mytkr = twsFuture("ES","GLOBEX","201412")
myorderid = sample(1001:3001, 1)
IBrokers:::.placeOrder(tws2, mytkr, twsOrder(myorderid, "BUY", "1", "MKT"))
twsDisconnect(tws2)
Sometimes the above script works okay. Usually though it fails. When it fails, it seems to connect okay.
Then I see this in my TWS console:
03:47:45:581 JTS-EServerSocket-290: [2:47:71:1:0:0:0:ERR] Message type -1. Socket I/O error -
03:47:45:581 JTS-EServerSocket-290: Anticipated error
jextend.d: Socket I/O error -
at jextend.sc.b(sc.java:364)
at jextend.ch.sb(ch.java:1534)
at jextend.ch.run(ch.java:1390)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:196)
at java.net.SocketInputStream.read(SocketInputStream.java:122)
at java.net.SocketInputStream.read(SocketInputStream.java:210)
at jextend.xh.d(xh.java:45)
at jextend.sc.c(sc.java:579)
at jextend.sc.r(sc.java:227)
at jextend.af.a(af.java:232)
at jextend.sc.f(sc.java:650)
at jextend.pd.a(pd.java:822)
at jextend.sc.b(sc.java:358)
... 3 more
03:47:45:583 JTS-EServerSocket-290: [2:47:71:1:0:0:0:ERR] Socket connection for client{2} has closed.
03:47:45:583 JTS-EWriter14-291: [2:47:71:1:0:0:0:ERR] Unable write to socket client{2} -
03:47:45:584 JTS-EServerSocketNotifier-288: Terminating
Can you offer any ideas on how you would wrestle with this issue?
One other piece of info:
I think the call to reqIds() may be necessary. Sometimes reqIds() would return an id not high enough. Then, I'd use it and placeOrder() would fail. So, I call reqIds() but then use Sys.time() to give me an id which is larger than the last ID I used.
Another problem may have been some code-text I copied out of a PowerPoint. Some of the code-characters may have been corrupt.
The main problem was orderid.
I need to be careful how I generate orderid.
Also I may have moused in bad characters from a powerpoint preso which had an example.
I posted some code which works in a comment in this thread.
Dan
I am geeting this error message " error Couldn't find string in telnet output () " while running a test plan using TCL.What is the meaning of this error and why i am getting this type of error.
Well, it should mean exactly what it says.
You are expecting a certain string to be returned from the thing you're testing (such as 'login: '), and that string is not appearing (maybe you're getting 'Log In:' instead, for example).
You need to figure out what's actually coming out and adjust your expectations accordingly.
Under what circumstances the IMFMediaSourceTopologyProvider::GetMediaSourceTopology() does not fail? It always fails with code 0xc00d36e6 (MF_E_ATTRIBUTENOTFOUND).
Please do not answer with a link to MSDN.
Here is the solution after pissing blood for hours.
You have to call QueryInterface() on IMFSequencerSource object to get the IMFMediaSource like this:
hr = pMFSequencerSrc->QueryInterface( __uuidof( IMFMediaSource ), (void**)&pMediaSource );
Now on pMediaSource object call CreatePresentationDescriptor() to get the presentation descriptor required for the GetMediaSourceTopology() call.
voila...
P.S.
That MF_E_ATTRIBUTENOTFOUND error... nice work M$