When we want to move to another Activity using Intent in Kotlin, it gives this error.
In Intent, it doesn't recognize .java after ::class
look:
And when I delete .java, Intent gives an error
Note: My problem was not solved with Invalidate Caches / Restart... option in File
I don't know where the problem is. please help me.
Kinda strange because it seems good to me. Try this.
Remove the lateinit and declare it directly when you need it, maybe it will solve the problem.
val intent = Intent(this, LauncherActivity::class.java)
I don't think the this#KotlinActivity is needed in this case.
Let me know if this fix it
UPDATE
Are you sure the findViewById<TextView>... is correct ? Shouldn't it has a declaration before ? Like
val view = findViewById<>...
The solution is:
In build.gradle (:app) file, in dependencies, you should change appcompat version to 1.4.2.
befor error:
dependencies {
implementation 'androidx.appcompat:appcompat:1.5.0'
...
}
And when I changed the version to 1.4.2, the problem was solved
dependencies {
implementation 'androidx.appcompat:appcompat:1.4.2'
...
}
And make sure the kotlin version is 1.5.0
Related
I have a set of code procedures I use in a lot of places and I'm trying to basically move it to a library.
So I created my library with some unit test and everything was looking promising and at least working localy..
When I went to my project and deleted the files locally and then try to import them from my library as a dependency the code does not work.
I always get this kind of error
Class does not define or inherit an implementation of the resolved method abstract getProperty(Ljava/lang/String;)Ljava/lang/Object; of interface groovy.lang.GroovyObject.
I'm definitely not an expert on groovy but basically I use it in my Jenkins and Gradle for pipelines and some basic packaging or environment deployments.
I can show my class:
class ConsoleRow implements Comparable {
...
final Integer priority
final String rowStatus
final String message
final String rowReportClass
ConsoleRow(Integer priority, String status, String msg, String rowC) {
this.priority = priority
this.rowStatus = status
this.message = msg
this.rowReportClass = rowC
}
#Override
int compareTo(Object o) {
return this.priority <=> ((ConsoleRow) o).priority
}
The line that gives me the error is this actual compareTo when trying to do the "this.priority"
Caused by: java.lang.AbstractMethodError: Receiver class com.abc.insight.jenkins.ConsoleRow does not define or inherit an implementation of the resolved method abstract getProperty(Ljava/lang/String;)Ljava/lang/Object; of interface groovy.lang.GroovyObject.
at com.abc.insight.jenkins.ConsoleRow.compareTo(ConsoleRow.groovy:24)
at com.abc.insight.jenkins.ConsoleOutputHtmlBuilder.processOutput(ConsoleOutputHtmlBuilder.groovy:115)
at com.abc.insight.jenkins.ConsoleOutputHtmlBuilder.processOutput(ConsoleOutputHtmlBuilder.groovy)
at com.abc.insight.jenkins.ConsoleOutputHtmlBuilder.buildReport(ConsoleOutputHtmlBuilder.groovy:20)
at com.abc.insight.jenkins.ConsoleOutputHtmlBuilder$buildReport.call(Unknown Source)
at build_e548mc0tqjmi822clitlsycdk.runReport(C:\dev\repo\insight\insight-health-check\data-foundation\smoke-test\build.gradle:77)
The calling function is just trying to sort a list of those objects
List<ConsoleRow> outputRows = []
...
return outputRows.sort()
The part that gets me really confused is that if instead of importing the library as a dependency I just do this directly in this repo and put my sources in my buildSrc\src\main\groovy\com\abc\insight the code works fine...
So I really think it might be how I package and publish my library that might be wrong.
I'm really sure this is some basic error on my part because I never did a groovy library before but somehow I can't make it work.
It might be that my publication is just wrong, on my library side I'm using this plugins to do the publishing.
plugins {
id 'groovy'
id 'java-library'
id 'base'
}
publishing {
publications {
maven(MavenPublication) {
from components.java
}
}
}
I tried to change components.groovy but somehow it does not work.
Any ideas or tips, I think my question probably is showing some really lack of know-how on groovy but looking at the documentation and examples I could not figure it out.
Doing some debug in my IDE the compareTo that generates the exception looks like this.
public int compareTo(Object o) {
CallSite[] var2 = $getCallSiteArray();
return ScriptBytecodeAdapter.compareTo(this.priority, var2[0].callGroovyObjectGetProperty((ConsoleRow)ScriptBytecodeAdapter.castToType(o, ConsoleRow.class)));
}
I tried following this guide and code structure when doing moving the code to a library
https://docs.gradle.org/current/samples/sample_building_groovy_libraries.html
Thanks for any feedback
p.s: My code might look weird, I tried first to have everything with the def blablabla but I was having some issues with typecasting but I don't think this would be the reason for the problem I'm facing.
Anyway I got a look at the generated code in my IDE and I see a lot of get methods just no idea where they expected this getProperty from
Ok this was definitely a user error.
I am using distribution version of gradle 6.5.1
When I did the gradle init to bootstrap my project I was provided with the dependency of gradle groovy-all version 2.5.11
implementation group: 'org.codehaus.groovy', name: 'groovy-all', version: '2.5.11'
I thought that was a mistake and just updated to the latest version.
implementation group: 'org.codehaus.groovy', name: 'groovy-all', version: '3.0.9'
Now the problem is that the project in which I'm using the library is also running with gradle 6.5.1 so probably this version missmatch between compiple and usage was causing the problem.
By reverting to the correct version suggested by gradle the problem is gone.
i have a problem why is setOpenableLayout not working?
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow)
.setOpenableLayout(drawer)
.build();
show error :
error: cannot find symbol
.setOpenableLayout(drawer)
^ symbol: method setOpenableLayout(DrawerLayout) location: class Builder
maybe someone here can help me
What is your gradle config.
Look a problem of sdk versions. Try changing ".setOpenableLayout(drawer)" for ".setDrawerLayout(drawer)".
Anyway, it's possible for your minSdk method setOpenableLayout does not exist yet.
I'd advise to set higher version of androidx.navigation:navigation-ui (say 2.4.1).
I have tried a different kind of ways to resolve the error but still can't resolve, and I'm still a new learner on flutter. But I still can run the whole project well without resolving the error shown.
There is no error that's just ide warning I think, that could be about typo etc, If you click to lamp and show us the suggestions then we can help more.
But I tried this part of code and get different warning and solved it with add # to override such as;
class MainActivity: FlutterActivity(){
#override fun configureFlutterEngine(#NonNull flutterEngine: FlutterEngine){
GeneratedPluginRegistrant.registerWith(flutterEngine);
}
}
If that's show same you need to check your ide settings, probably there is a missing plugin(Dart or Flutter).
I am trying (and failing :) ) to create a gradle plugin that has a default set of versions for dependencies and can be overridden in the gradle.build file that is calling my plugin. Ideally something like the sudo-code below
MyDefaultPropertiesPlugin.groovy
project.versions.springBoot="1.0.0-RELEASE"
MyPlugin.groovy
project.apply plugin: MyDefaultPropertiesPlugin
compile("org.springframework.boot:spring-boot-starter-web:${project.versions.springBoot}")
build.gradle
versions.springBoot = "1.1.0-RELEASE"
project.apply plugin "my.plugin"
I attempted to do using extensions but ran into isssue's via the ordering when overriding. (versions doesnt exist)
I would greatly appreciate any advise on this, maven would be easy, but my gradle knowledge is still evolving :)
Thanks in advance for any insight!
Plugins have to defer accessing the build model until after build scripts have been evaluated. Easiest solution is to use project.afterEvaluate {}, but there are others. For more information, see answers to similar questions here or on http://forums.gradle.org.
Came up with a pretty workable if not perfect solution, I will update if i think of anything better, my gradle is at a learning level, so please commend if this can be improved.
This allows me to define a set of versions and clients to overwrite those versions with a simple property
MyDefaultVersionsPlugin.groovy
class MyDefaultVersionsPlugin implements Plugin<Project>{
project.extensions.create('versions', MyVersions, project)
}
class MyVersions{
String spring
String slf4j
public MyVersions (Project project){
spring = setVersion(project,'springVersion', 'x.x.x.x')
slf4j = setVersion(project,'slf4jVersion', 'x.x.x.x')
}
private static String setVersion(Project project, String name, String version){
if(project.hasProperties(name)){
return project.getProperties().get(name)
}
else {
return version
}
}
}
MyPlugin.groovy
project.apply plugin: MyDefaultVersionsPlugin
compile("org.springframework.boot:spring-boot-starter-web:${project.versions.spring}")
build.gradle
buildscript { ext { springVersion = 'x.x.x.x'} }
With a skeleton project with FirstView from HotTuna package, and with Build linker behavior set to "Link all assemblies", I get the following error:
System.MissingMethodException: Default constructor not found for type Cirrious.CrossCore.IoC.MvxPropertyInjector
Using NuGet package v3.1.1 for all MvvmCross (4 packages)
LinkerPleaseInclude file does have the line
[MonoTouch.Foundation.Preserve(AllMembers = true)]
Using the latest stable build:
On PC:
Xamarin for VS 1.12.278
Xamarin.iOS 1.12.278
Mac:
Xamarin.iOS 7.2.2.2
Of course with Linker behavior of SDK only, it runs fine. Any suggestions anyone?
Solved; So, with the basic project, there were three consecutive errors in the following order:
System.MissingMethodException: Default constructor not found for type Cirrious.CrossCore.IoC.MvxPropertyInjector
can be resolved either by --linkskip=Cirrious.Core (ugly), or by including the following in LinkerPleaseInclude.cs
public void Include(MvxPropertyInjector injector){
injector = new MvxPropertyInjector ();
}
Next error is:
Cirrious.CrossCore.Exceptions.MvxException: Failed to construct and initialize ViewModel for type {0} from locator MvxDefaultViewModelLocator - check MvxTrace for more information
This one is difficult; Simple fix is to ofcourse to do a --linkskip=portableLibrary, or to crate an instance of the ViewModel somewhere (perhaps in LinkerPleaseInclude.cs); problem with the second approach at-least in my case is, most of my VM doesn't have a parameter less constructor, and obviously using IOC in this case wouldn't help.
Final Error:
System.ArgumentNullException: missing source event info in MvxWeakEventSubscription
Parameter name: sourceEventInfo
Either use --linkskip=System (ugly), or add the following to LinkerPleaseInclude.cs
public void Include(INotifyPropertyChanged changed)
{
changed.PropertyChanged += (sender, e) => {
var test = e.PropertyName;
};
}
This was enough for my basic project to run with LinkAllAssemblies, Using LLVM optimizer, and Use SGen collector.
Hope this will help anyone looking for a solution.
I hit this when my XCode was out of sync with the latest Xamarin on my Mac. Upgrading XCode to the latest resolved the problem.