misc | Embedded software modules : dynamic memory
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QUESTION
I sort of need help here, honestly not sure where I went wrong, here is the full code. I am sort of new, just trying to bring back the mention user and the reason back in a message instead of doing anything with this information.
...ANSWER
Answered 2021-Jun-15 at 17:58Why are you calling client in a command file if you already started a new instance of a client in your root file? try removing client from the top of the code. Hope that works
QUESTION
I have two entity classes as follows. The Parachute is the parent object and it has multiple Component objects. I need to have bidirectional @OneToMany implemented here.
Parent Parachute.java class.
ANSWER
Answered 2021-Jun-15 at 06:17You are violating the JPA spec by accessing the persistence context in a lifecycle listener.
See the JPA Specification 4.2 Section 3.5.2
In general, the lifecycle method of a portable application should not invoke EntityManager or query operations, access other entity instances, or modify relationships within the same persistence context. A lifecycle callback method may modify the non-relationship state of the entity on which it is invoked.
"a portable application should not" is the specification way of saying: Don't do that, anything might happen. Maybe the world ends.
The fix is not to do that. Maybe be preloading the currently logged in user and reference it so you may access it in your entity listener and do not set a reference to the user, but simple store its id or similar.
QUESTION
I have an image (QR image) that i have to display it, and keep refreshing it every time. I tried many solutions but none worked, this is my code:
...ANSWER
Answered 2021-Jun-14 at 21:36You have to keep a reference to the PhotoImage instance first, which you are not:
QUESTION
I was reading over a resource https://www.mi.mun.ca/users/cchaulk/misc/boolean.htm and I noticed the xnor simplification seems to have mixed outputs.
15a, 15b, 15c are all focusing on xnor but only 15b seems to be correct when I attempt to check.
For reference:
...ANSWER
Answered 2021-Jun-14 at 21:0415b is the definition of XNOR in conjunctive normal form. 15c is the negation of XNOR (i.e., XOR) in disjunctive normal form. You can derive this using De Morgan's laws, which state
'(XY) == 'X + 'Y'(X + Y) == 'X'Y
Using these laws, we can first write 15b
QUESTION
I'm just working on a GUI with tkinter in python. But I'm having some issues here. I'm creating a button that once it's clicked it will go back a page (Misc.lower(canvas2) and Misc.lift(canvas1)). Although i created a window for the button on the self.canvas2, the buttons is still there when the canvas is lowered.
Here is my code:
...ANSWER
Answered 2021-Jun-13 at 19:50Not sure why you would just want to hide it though, then how would the users redirect to the previous page? Is this what you wanted?
QUESTION
Pretty much what the title says, but I just wanted to figure out how to get my bot to send a DM to anyone and everyone who reacts to the message it sends.
...ANSWER
Answered 2021-Jun-12 at 03:48this code is missing } and you should try using async/await that will easier to look and understanding for newbie. And as your code of filter using on createReactionCollector you are capture emoji that reacted by who send bot command request not every user (user.id === message.author.id)
QUESTION
I created a simple client and server using CPPRESTSDK. The client sends an image and on the server, I save the incoming file and then start doing the processing phase afterwards.
Now I want to check if the sent file is actually an image file and not some other random file. For that, I check the first few bytes of the file and this allows me to know what I'm dealing with.
This is the snippet responsible for saving the file:
ANSWER
Answered 2021-Mar-07 at 02:45You need to open the file stream for both reading and writing, by explicitly passing the mode parameter to the open_ostream function. If you don't specify this parameter, it defaults to std::ios_base::out.
QUESTION
I want to set up a latency command in a cog but it isn't possible since there's no client attribute in a cog, upon using self.client.latency it still gives a error
ANSWER
Answered 2021-Jun-10 at 06:08When creating a class make sure you add two undescores in init function eg: __init__ instead of _init_.
Methods with __ are known as dunder or magic methods in python. Read these for more info on them:
QUESTION
I've scala and scalajs project and it is in github for reference.
Initially I've scalatest version 3.0.3 and scalacheck version 1.13.5. The command sbt clean test is working fine.
I've updated scalatest version to 3.1.4 and scalacheck version 1.14.3.
After this updated scala project tests are working fine but scalajs tests are not.
The error I'm getting is
[info] Fast optimizing /Users/rajkumar.natarajan/Documents/Coding/misc/sjs-test-error/core/js/target/scala-2.12/reftree-test-fastopt.js
[error] Referring to non-existent method org.scalatestplus.scalacheck.ScalaCheckConfiguration.$$init$()scala.Unit
[error] called from generic.RefTreeSpec.()
[error] called from generic.RefTreeSpec.()
[error] called from core module analyzer
[error] Referring to non-existent method org.scalatestplus.scalacheck.ScalaCheckDrivenPropertyChecks.$$init$()scala.Unit
[error] called from generic.RefTreeSpec.()
[error] called from generic.RefTreeSpec.()
[error] called from core module analyzer
[error] There were linking errors
[error] (coreJS / Test / fastOptJS) There were linking errors
[error] Total time: 31 s, completed Jun 9, 2021, 5:54:57 PM
The changes are in this commit.
I tried to figure out but I'm novice in scalajs. Is there anything extra I need to do to work correctly?
...ANSWER
Answered 2021-Jun-09 at 22:19QUESTION
I run my Android app (based on Java), and it works. Next, I add to my app code:
FirebaseFirestore fdb = FirebaseFirestore.getInstance();
This code I got from the official Android site https://firebase.google.com/docs/firestore/quickstart
App runs, but next the running device shows the message "app has stopped".
I use a device simulator available in Android Studio.
It is my first Android app, and I can't understand what is going.
----Trace------ 2021-06-08 20:57:30.186 7155-7155/? D/AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 2000 <<<<<< 2021-06-08 20:57:30.188 7155-7155/? D/AndroidRuntime: CheckJNI is ON 2021-06-08 20:57:30.210 7155-7155/? W/art: Unexpected CPU variant for X86 using defaults: x86 2021-06-08 20:57:30.214 7155-7155/? D/ICU: No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat 2021-06-08 20:57:30.229 7155-7155/? E/memtrack: Couldn't load memtrack module (No such file or directory) 2021-06-08 20:57:30.229 7155-7155/? E/android.os.Debug: failed to load memtrack module: -2 2021-06-08 20:57:30.230 7155-7155/? I/Radio-JNI: register_android_hardware_Radio DONE 2021-06-08 20:57:30.239 7155-7155/? D/AndroidRuntime: Calling main entry com.android.commands.am.Am
...ANSWER
Answered 2021-Jun-09 at 03:39At the end of your log, just before the initial crash. there is a warning:
Default FirebaseApp failed to initialize because no default options were found. This usually means that com.google.gms:google-services was not applied to your gradle project.
simply adding com.google.gms:google-services should fix any issues you have, if you have issues, ensure your Gradle cache is cleared or run without the build cache
--no-build-cache
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