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QUESTION
I'm working on the Flutter project. After I updated the version of the Android Studio when I click on the device manager to open my devices it doesn't show. I don't know what should I do?
At the first image it's gif image to explain what I mean.
I put the second image to show current version (Bumblebee).
ANSWER
Answered 2022-Jan-26 at 14:17IntelliJ (Android Studio) wants to know what kind of project you have to show the right menus.
- click left in file tree on the root node (project name)
- MENU -> FILE -> PROJECT STRUCTURE
- select left MODULES
- hit + button to add ANDROID
- hit OK Button
- top of the root node (project name) select PROJECT... to see your old view
QUESTION
ANSWER
Answered 2021-Aug-09 at 11:03I have fund out that it is a bug. Many people are facing the problem using version 2020.3.1. Version 4.2.2 is working well in this case. Here are some links about this bug: https://issuetracker.google.com/issues/195340090 https://issuetracker.google.com/issues/191209456 https://issuetracker.google.com/issues/195318441 https://issuetracker.google.com/issues/195336461
QUESTION
ANSWER
Answered 2021-Nov-25 at 09:59- Download Microsoft.NETFramework.ReferenceAssemblies.net45 from nuget.org
- Open the package as zip
- copy the files from
build\.NETFramework\v4.5\toC:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5
For more details: Building a project that target .NET Framework 4.5 in Visual Studio 2022
QUESTION
I am reading this book by Fedor Pikus and he has some very very interesting examples which for me were a surprise.
Particularly this benchmark caught me, where the only difference is that in one of them we use || in if and in another we use |.
void BM_misspredict(benchmark::State& state)
{
std::srand(1);
const unsigned int N = 10000;;
std::vector v1(N), v2(N);
std::vector c1(N), c2(N);
for (int i = 0; i < N; ++i)
{
v1[i] = rand();
v2[i] = rand();
c1[i] = rand() & 0x1;
c2[i] = !c1[i];
}
unsigned long* p1 = v1.data();
unsigned long* p2 = v2.data();
int* b1 = c1.data();
int* b2 = c2.data();
for (auto _ : state)
{
unsigned long a1 = 0, a2 = 0;
for (size_t i = 0; i < N; ++i)
{
if (b1[i] || b2[i]) // Only difference
{
a1 += p1[i];
}
else
{
a2 *= p2[i];
}
}
benchmark::DoNotOptimize(a1);
benchmark::DoNotOptimize(a2);
benchmark::ClobberMemory();
}
state.SetItemsProcessed(state.iterations());
}
void BM_predict(benchmark::State& state)
{
std::srand(1);
const unsigned int N = 10000;;
std::vector v1(N), v2(N);
std::vector c1(N), c2(N);
for (int i = 0; i < N; ++i)
{
v1[i] = rand();
v2[i] = rand();
c1[i] = rand() & 0x1;
c2[i] = !c1[i];
}
unsigned long* p1 = v1.data();
unsigned long* p2 = v2.data();
int* b1 = c1.data();
int* b2 = c2.data();
for (auto _ : state)
{
unsigned long a1 = 0, a2 = 0;
for (size_t i = 0; i < N; ++i)
{
if (b1[i] | b2[i]) // Only difference
{
a1 += p1[i];
}
else
{
a2 *= p2[i];
}
}
benchmark::DoNotOptimize(a1);
benchmark::DoNotOptimize(a2);
benchmark::ClobberMemory();
}
state.SetItemsProcessed(state.iterations());
}
I will not go in all the details explained in the book why the latter is faster, but the idea is that hardware branch predictor is given 2 chances to misspredict in slower version and in the | (bitwise or) version. See the benchmark results below.
So the question is why don't we always use | instead of || in branches?
ANSWER
Answered 2022-Feb-08 at 19:57Code readability, short-circuiting and it is not guaranteed that Ord will always outperform a || operand. Computer systems are more complicated than expected, even though they are man-made.
There was a case where a for loop with a much more complicated condition ran faster on an IBM. The CPU didn't cool and thus instructions were executed faster, that was a possible reason. What I am trying to say, focus on other areas to improve code than fighting small-cases which will differ depending on the CPU and the boolean evaluation (compiler optimizations).
QUESTION
After updating Android Studio to Arctic Fox and Android Gradle plugin to 7.0.0 I'm facing this warning, I mean the app can be built successfully nonetheless of this warning but what I am missing here? What's the problem here?
According to the official View Binding reference, I'm enabling it the right way. here is my build.gradle if anyone is interested in checking.
There are some related questions but I don't think they are relevant in this situation.
ANSWER
Answered 2022-Jan-06 at 11:08Remove equal sign. On the screenshot you use Kotlin configuration, but Groovy is needed here. See the difference:
QUESTION
It seems that SSL connection is required to use MySQL Workbench, and I don't think this is the case with previous versions.
I remember SSL connections used to be optional. After I updated it, all options are locked to require SSL.
How do I bypass this? I'm just a student and setting up SSL is out of my reach.
ANSWER
Answered 2021-Nov-02 at 19:29I don't know if it may be the right approach for you, but what I did is downgrade my version of MySQL Workbench to 6.3 and uninstalled the previous version and it will then give you the "if available" option for SSL. As you are right, it is not the case for previous versions, however you do lose a few more modern features in the process.
https://downloads.mysql.com/archives/workbench/
Another solution as well is to connect to connect to the database in 6.3 and since the configuration saves are in same location, upgrade to 8.0 where it will still have the old configuration file and won't use SSL due to backwards compatibility.
QUESTION
After updating Xcode to version 13.2 i can't build my project anymore. I have a strange error "Internal error: missingPackageDescriptionModule" related to my Workspace file.
It's definitely related to SPM because Xcode is not loading SPM packages also. I tried to "Reset package caches", "Resolve package caches" and also "Updating to latest package caches" but after all of these operating nothing happens. Deleting derived data, cleaning didn't help too...
I tried also to resolve packages from Terminal using xcodebuild -resolvePackageDependencies but I get error message:
--- xcodebuild: WARNING: The directory /Users/ptocicki/Developer/KFC/kfc-ios also contains the legacy project 'project.pbxproj' - ignoring it and using 'KFC.xcodeproj'.
xcodebuild: error: Could not resolve package dependencies:
Internal error: missingPackageDescriptionModule"
ANSWER
Answered 2021-Dec-17 at 20:37Apple is aware of the issue.
We're currently investigating this issue — thank you to those who have filed bug reports so far. To workaround this issue, please re-download Xcode 13.2 directly from the Downloads page.
https://developer.apple.com/forums/thread/696504?answerId=698142022#698142022
QUESTION
ANSWER
Answered 2022-Jan-01 at 22:41It's fixed. I do npx create-react-app@5.0.0 my-app.
QUESTION
I am getting this error code in my Visual Studio Code. How can I fix it?
I am using Flutter v2.5.3.
ANSWER
Answered 2022-Jan-04 at 02:35You can try fixing it by running this in the terminal:
Just copy and paste the below code in the terminal and run it.
dart pub global activate devtools -v 2.8.0
which downgrades the version to 2.8.0 (that works fine). I found the answer on GitHub.
QUESTION
Uploading an iOS app to App Store Connect with Xcode (Automatically manage signing) and received this error:
The following errors occurred while locating and generating signing assets. ...
Communication with Apple failed. You haven't been given access to cloud-managed distribution certificates. Please contact your team's Account Holder or an Admin to give you access. If you need further assistance, contact Apple Developer Program Support at https://developer.apple.com/support
I have checked:
- the cert is installed and valid
- I have access to Certificates, Identifiers & Profiles
ANSWER
Answered 2021-Oct-18 at 01:45the cert is installed and valid
That doesn't matter. New in Xcode 13, if you choose Automatic signing, Apple tries to do cloud-based signing; it doesn't even see the certificate that's on your computer.
But you do not have the cloud-based signing privilege, so it fails.
You have two choices:
Get the privilege. It is really worth it, because cloud-based signing is great! It allows you to distribute from an archive to App Store Connect without having any distribution identity or distribution certificate at all. This totally solves the problem that there's only one distribution certificate at a time.
Switch to manual signing. Now the distribution certificate on your computer will be used. You'll need explicit access to the distribution profile too, obviously; the whole export resigning will be manual. That might be simplest if you're in a hurry.
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