Boost Try lock Assert - boost

I am using boost::recursive_mutex. But when I use try_lock on this for the first time I am getting following error
CollisionAvoidance: /usr/include/boost/thread/pthread/recursive_mutex.hpp:78: bool boost::recursive_mutex::try_lock(): Assertion `!res || res==16' failed.
What is the reason for this?

Found the problem I have tried to lock the mutex before creating it. It did not segfault but failed to acquire...

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chromedp fails to start a new instance of chrome

Hey guys I have been trying to automate a task on my browser's machine using chromedp.
I tried examples on the repo however they always fail:
unexpected fault address 0x7f7a36461000 fatal error: fault [signal SIGBUS: bus error code=0x2 addr=0x7f7a36461000 pc=0x53a9d5]
Example's source code am running can be found here.
As I understand chromedp comes with headless pre-compiled version of chrome. I have browsed the API documentation to see if it possible to pass a port on which the dev tools is listening, no success.
However when I tried mafredri/cdp it worked. I came to understand that chromedp is failing to start its embedded chrome. Although, I am not really sure. Why is this happening?
My env:
Google Chrome 85.0.4183.102
Ubuntu 18.04.4 LTS
go version go1.13.5 linux/amd64
Any help would be truly appreciated.
So, long story short I went to run tests on the chromedp locally installed library through go test, it failed. I opened an issue on the Github repo. While it was not indicated that it requires Go 1.14+ but it does.
If you encountered this issue, please proceed to first run the tests on the master branch locally installed library. If it is fails with the following log:
github.com/chromedp/chromedp [github.com/chromedp/chromedp.test]
./chromedp_test.go:862:3: t.Cleanup undefined (type *testing.T has no
field or method Cleanup) ./chromedp_test.go:948:5: t.Cleanup undefined
(type *testing.T has no field or method Cleanup)
./chromedp_test.go:950:5: t.Cleanup undefined (type *testing.T has no
field or method Cleanup) FAIL github.com/chromedp/chromedp [build
failed]
You need to know that t.Cleanup was added on Go 1.14 (credits to Oiyoo).
I hope this helps you if you are having the same problem.

Error: command "bash" failed with no error message?

I am using terraform on my Mac system, and terraform apply results with below error
Error: command "bash" failed with no error message
on ssm.tf line 7, in data "external" "ssm-dynamic-general":
7: data "external" "ssm-dynamic-general" {
However there is nothing wrong in ssm.tf file, same runs perfectly fine in my another system.
Can some one please let me know what i am missing here?
You might have done what I accidentally did: not follow the external program protocol:
https://www.terraform.io/docs/providers/external/data_source.html#external-program-protocol
In my particular case, I failed to send the errors that were coming from my program to standard error. Instead, those errors were going to standard out.
That's why Terraform wasn't able to report on those errors.
So if you send any and all errors from your program to standard error using > &2, you should be able to see those errors when you run terraform plan.

No idea how to get rid of fatal error after closing turtle based program

So,i know why the error happens,i packed the python script into an exe with pyinstaller and i disabled the console therefore the fatal error which says "failed to execute the script "name"" pops up and i know that it happens because of breaking turtle with turtle.bye() ,even as that,i've tried stopping turtle with turtle.onclick() and same thing happened.How do i get rid of that error? :( Thanks for the help,it's really bugging me out because other than that,the program works as intended.

Xcode error: Command failed with exit code 1

I imported a new code into Xcode and I am getting this error:
Command
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc
failed with exit code 1.
How do you fix it?
Try cmd+alt+shift+k. This cleans your derived data and might fix the issue.
As far as I know there can be multiple reasons why a compiler fails. Although cmd+alt+shift+k will help most of the time. If this fails, then click on the error message and try to debug it.
For example in the image below, if you read the message, we get to know that, there has been a name duplication. Fixing the name duplication will fix the

Error: package or namespace load failed for ‘xgboost’

I keep getting this error even though I've already installed the xgboost package. I tried the following code and it keep saying the same when I run library(xgboost). Anyone has any idea?
I've already tried this code and it keep saying the same thing:
remove.packages("xgboost")
install.packages('xgboost', dependencies = TRUE)
Thanks in advance!

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