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I had app module running on my android studio project until I pressed delete by mistake. I am now unable to run my project as it doesn't detect app module.
I can see app folder in project view (containing build, libs, src folders) but I don't see it in android view or configuration setting where it says
I have an old apk file of the project.
I shared my project on github.
Please help me get my module back so that I can run my project.
All I had to do was File->Sync project with gradle files.
In order to not risk and further modify your content, try and clone again your android repo elsewhere and see if your module shows up there.
If it does, copy it back in your current repo.
I had this same issue, twice now. The first time, a full clean/rebuild did the trick. The second time, this didn't work. What did resolve the problem was opening the settings.gradle file and copying everything, then removing it to leave an empty file. Then save and resync Gradle. This failed, but then I pasted the old contents back into the file and did a resync again, which then fixed the issue.
Not sure what the problem was in the first place, but this worked for me so I figured I'd share.
I'm importing twitter4j in AndroidStudio, using the following in my build.gradle:
dependencies {
compile 'com.android.support:support-v4:18.0.+'
compile files('libs/twitter4j-core-3.0.4.jar')
}
The project compiles fine, and I can create twitter objects without a problem. However, in Android studio, anything referencing that library shows "cannot resolve symbol" and displays in red. What do I need to do to get Android Studio to recognize the library?
I have already tried rebuilding the project, ./gradlew clean, and closing and re-opening my project.
No idea if this will work or not but my only thought so far: right click the jar file in file tree within AS and select "Add as library..."
EDIT: You can do "File" -> "Invalidate Caches...", and select "Invalidate and Restart" option to fix this.
EDIT 2: This fix should work for all similar incidents and is not a twitter4j specific resolution.
Try changing the order of dependencies in File > Project Structure > (select your project) > Dependencies.
Invalidate Caches didn't work for me, but moving my build from the bottom of the list to the top did.
This is what worked for me.
In the Project panel, right click on the project name, and
select Open Module Settings from the popup menu.
then change the Compile SDK Version to the minimum version available (the minimum sdk version you set in the project).
wait for android studio to load everything.
It will give you some errors, ignore those.
Now go to your java file and android studio will suggest you import
import android.support.v4.app.FragmentActivity;
Import it, then go back to Open Module Settings and change the compile sdk version back to what it was before.
Wait for things to load and voila.
For mine was caused by the imported library project, type something in build.gradle and delete it again and press sync now, the error gone.
I also had this issue with my Android app depending on some of my own Android libraries (using Android Studio 3.0 and 3.1.1).
Whenever I updated a lib and go back to the app, triggering a Gradle Sync, Android Studio was not able to detect the code changes I made to the lib. Compilation worked fine, but Android Studio showed red error lines on some code using the lib.
After investigating, I found that it's because gradle keeps pointing to an old compiled version of my libs.
If you go to yourProject/.idea/libraries/ you'll see a list of xml files that contains the link to the compiled version of your libs. These files starts with Gradle__artifacts_*.xml (where * is the name of your libs).
So in order for Android Studio to take the latest version of your libs, you need to delete these Gradle__artifacts_*.xml files, and Android Studio will regenerate them, pointing to the latest compiled version of your libs.
If you don't want to do that manually every time you click on "Gradle sync" (who would want to do that...), you can add this small gradle task in the build.gradle file of your app.
task deleteArtifacts {
doFirst {
File librariesFolderPath = file(getProjectDir().absolutePath + "/../.idea/libraries/")
File[] files = librariesFolderPath.listFiles({ File file -> file.name.startsWith("Gradle__artifacts_") } as FileFilter)
for (int i = 0; i < files.length; i++) {
files[i].delete()
}
}
}
And in order for your app to always execute this task before doing a gradle sync, you just need to go to the Gradle window, then find the "deleteArtifacts" task under yourApp/Tasks/other/, right click on it and select "Execute Before Sync" (see below).
Now, every time you do a Gradle sync, Android Studio will be forced to use the latest version of your libs.
When i lived to this problem(red color codes but they work correctly) in my project;
As first, i made it that (File -> Indicate Cashes) --> (Invalidate and Restart).
As last, i resync my build.gradle file in my app. After problem was resolved.
Invalidate Caches / Restart didn't work for me this time.
Found a solution like this:
Remove the compile *** or implementation *** line in build.gradle.
Clean and rebuild. Errors should be raised here.
Add the line in step 1 back to build.gradle.
Clean and rebuild.
Weird...
This problem happened for me when my Glass project was not using the SDK installed in Android Studio's default location. I was using another location I had previously from ADT, since I was trying to avoid re-downloading everything. Once I pointed the project back to the SDK location in Android Studio's install location the problem went away.
I had this problem for a couple of days now and finally figured it out!
All other solutions didn't work for me btw.
Solution: I had special characters in my project path!
Just make sure to have none of those and you should be fine or at least one of the other solutions should work for you.
Hope this helps someone!
I had the very same problem recently with Android Studio 1.3. The only working solution was to remove the .gradle and .idea folders and re-import the project into Android Studio.
For those, who tried the accepted answer and have no success,
I tried also the accepted answer and did not work for me. After that, I updated my project with the repository and synchronized the project and the could not resolve warnings are gone.
Invalidate Caches didn't work for me (this time). For me it was enough changing the gradle and syncing again. Or https://stackoverflow.com/a/29565362/2000162
If nothing else helped, you could do as Android Studio suddenly cannot resolve symbols recommends:
Exit Android Studio
Back up your project
Delete all the .iml files and the .idea folder
Relaunch Android Studio and reimport your project
In my case, I had created a new file using the GUI and defined an interface within the file. I kept getting this symbol error because the file was not a "java" file. It had no extension on it at all.
After modifying the file extension to ".java", the system correctly finds the symbols.
In my case the jar file did not have a META-INF/MANIFEST.MF file. After adding one, it worked!
For my case working with AndroidStudio 2.2.3 the solution was to change the gradle wrapper/distribution to use local one in the Gradle Settings (despite of being "recommended").
This worked for me--
(File -> Indicate Cashes) --> (Invalidate and Restart).
I tried Invalidate cache/restart or clean Project -> rebuild project. These didn't work for me.
The final solution was open Project window on the left side of IDE, under Project mode, delete .gradle and .idea folder, THEN you can invalidate caches and restart. This fixed it.
Change compile to implementation in the build.gradle.
Changing the language injection settings worked for me.
Place the cursor on any of the red underlined code and Alt + Enter
Now select Language Injection Settings and a window will open as shown below.
Uncheck the selected option and click Ok
Hope this helps somebody.
It happened to me when I removed the whole files in .gradle/caches, then studio downloaded the dependences. The dependences not showed in the External Libraries but I can build App successfully. rebuild clean Invalidate and Restart have no effect. I solved the problem by the steps:
Close Android Studio completely
Remove .idea package in your project
Restart Android Studio
I have tried this but nothing worked for me:
Invalidate Caches / Restart
Changing the order of dependencies
Sync project with Gradle Files
Clean -> Rebuild Project
In my case, just do:
Delete all files in .idea/libraries folder
Rebuild Project
For me I updated gradle-wrapper.properties into 4.4
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
I found easiest way
Identify the library which is causing syntax error in Studio.
For Example if AppCompatActivity is showing error then you will perform below operation on AppCompat Dependency.
Remove dependency which is showing syntax error & Sync.
Add again & Sync.
That's It, error gone!
Before
After
None of the answers above works for me.
After a lots of attempts, I upgraded com.android.tools.build:gradle in Project/build.gradle from 2.3.0 to 3.0.1, and it works.
I guess the version of the com.android.tools.build:gradle should be match to the version of AndroidStudio, and my AS version is 3.2.1
I tried all of the posted solutions and none of them worked for me. (Though invalidate caches does normally. This time it made no difference). After trying everything posted here the "Error cannot resolve" were still present. And the project did build and run successfully, only the IDE seemed to be confused, not the actual app or device.
My Version of Android Studio is 2021.3.1:
The solution that did finally work for me was updating the "Android Gradle Plugin Version" configuration inside of File -> Project Structure.
It was originally 3.2.1 when it wasn't working. I updated it to 3.5.3 because I have another project that was working fine and it was on that setting.
After making this change and then sync'ing gradle the symbols not resolved error goes away and the IDE once again knows what those classes are.
Closing all files and closing Android Studio works for me.
You need to restart Android Studio.
I have installed Android Studio version 1.0.1. I have imported my projects from eclipse and it works fine.
Then I deleted a module and reimported it into my Android Studio project. The gradle build says "BUILD SUCCESSFUL" but it pops up an alert window with the message
Failed to complete Gradle execution.
Cause:
Already disposed: Module: 'MYMODULENAME'
I can't start my app now. Any idea what I can do?
Edit:
I solved the problem with the following instructions:
Switch project view from Android to Project
Remove entry include 'MYMODULENAME' in settings.gradle
The blue box in the module symbol don't show. Then you can delete the module in the context menu
Import the module
Note: this is purely an IDEA/AS issue, gradlew clean | Build > Clean | Build > Rebuild will just waste your time.
Most of the solutions here are blind stabbings in the dark. Here's what I found to be the root cause:
Some of the .iml files may be missing (maybe because we deleted it),
check if the module erroring has .iml.
If it is missing, check if .idea/modules.xml has an entry for that module
While syncing I noticed that IDEA/AS tries to put a new duplicate entry into .idea/modules.xml while there's already one. This duplicate entry is probably disposed of twice while the sync tries to reset the modules in memory.
Quick Solution: In order to make it work the easiest is to delete .idea/modules.xml along with the .iml files. Additionally may worth deleting .idea/modules/ folder if it exists. Restart Android Studio (no need to clear cache) and force a Gradle sync from Gradle view or toolbar to recreate the files.
I figured out this problem by:
./gradlew clean
Restart Android Studio
Simplest solution. (Try this first).
Quit and Restart Android studio. (Quit not close)
Build > Clean your project if needed.
works for me:
File -> Invalidate Caches / Restart... -> Invalidate and Restart
Sometimes gradlew clean or Invalidate Cache and Restart does not help, because these methods do not clean Android Studio specific files by themselves.
In this case, close AS and remove .idea directory and .iml file in a root project where settings.gradle file exists. This will make AS rebuild from the fresh ground.
For me this happened when i deleted a module and built a new one with the same package name
Solution:
Clean & Restart Studio
In the left pane, change to "Project" view.
Delete MYMODULENAME.iml
For an alternative solution, check if you added your app to settings.gradle successfully
include ':app'
For me this happened when I removed a module and tried to build the project:
Simple solution was to Invalidate the cache & Restart.
Android Studio>File>Invalidate Caches>Invalidate & Restart
Had a similar issue when working with RN components in my Android project and the only way to get around this issue was to ignore the gradle project.
To do this:
Click on the gradle tab on the right hand side of AS
Right click the gradle module which is causing an issue
Click "Ignore Gradle Project"
Perform a gradle sync which should be successful now
If you need this module perform the 4 above steps again, this time when right click on the gradle project it'll show "Unignore Gradle Project"
Gradle sync should now work
No idea what causes this but I've had this happen to me when using React Native Maps.
Note: If you're still having issues following this. Try to refresh the gradle project which was causing issues.
If gradle clean and/or Build -> Clean Project didn't help try to re-open the project:
Close the project
Click "Open an existing Android Studio project" on the "Welcome to Android Studio" screen
Select gradle file to open
Warning Be aware it's a destructive operation - you're going to loose the project bookmarks, breakpoints and shelves
below solution works for me
Delete all .iml files
Rebuild project
For Solve this issue take it this simple steps.
Find the .idea folder in your Android studio under the Folder Project.
In .idea --> Find this one. .idea/.modules
Simple Delete that .modules folder and restart Your studio.
when it reopens gradle sync Automatically and also recreate .modules folder and files.
Error has gone !
I also face this problem sometimes. Click on gradle console in bottom bar of android studio, at right side. It will show the exact error in logs. My problem was that I had compile SDK 22 and imported appcomact library was of sdk 23.
I had the same problem,
after delete some gradle files (of aws)
i solved it by mark them "ignore gradle"
I believe it is not the best answer but it solve it for me
Gradle (at the right bar)--> right click on the problematic gradle --> ignore
Although the accepted answer didn't work for me (unfortunately I can't leave a comment), it led me in the right direction.
in .idea/libraries i found that there were some duplicate xml files (the duplicates were named with a 2 before the _aar.xml bit).
deleting those, restarting android studio and sync fixed the error
I was having this issue because gradle and Android Studio were using a different path for the jvm. In the Event Log there was an option for AS and gradle to use the same path. Selecting this and then doing an invalidate cache & restart resolved the issue for me.
In my case, same as in this question, it happened because I had my project in a symbolic link directory. After reopening the project in the real directory and reconfiguring gradle (File -> Sync with Gradle files) the problem went away. Shame on you, Android Studio!
I am a little confused. It seems to me there is not way to delete a module in android studio. Am I crazy, or is true?
I can not find a way anywhere. If I manually delete folder from project, it just gets added again when I rebuild.
In the Project Structure dialog, under Modules, you can select a module and click the - button to delete it, as in this screenshot:
It will remove the module from your project, but you still need to manually delete it from the filesystem.
Note that if you're running older versions of Android Studio, there may be problems with deleting modules, and they will stubbornly reappear. That bug has been fixed, but I forget what version it was in; the latest version is 0.4.6, and it should be working well there.
Go into the project settings.gradle and delete the module from that include statement, then right click and delete the module, and sync.
I got this error on Android Studio (AS):
How I got it:
I created an AS Project from scratch and everything was fine.
Then a popup showed up, and (if I recall correctly) was saying something like: "Android Framework detected". I pressed "Yes' and some changes happened to the project/module. And after that I got the above error
Edit:
In my case the problem was not Gradle related. It had to do with IntelliJ/Android Studio configuration, an .iml file in particular.
I realized that after reading this informative post here.
On Android Studio v0.8.2 clicking on Sync project with Gradle files button solved my problem.
update
Thanks to the comment of jaumard. If the Sync project with Gradle files it's not visible you have to open the Gradle panel and click sync icon on top the toolbar.
Just call (in any case) File -> Invalidate Caches and Restart....
In my case:
settings.gradle file was empty. I added defualt code:
include ':app'
Then I clicked
Then project start works.
Double check that under project structure / module / Manifest file it points to the correct manifest file in your code and not the one in generated sources.
This is true for both Android Studio and Intelli J. Sometime when you import project from existing sources it prefer the manifest file inside the generates sources directory.
What helped for me was:
delete .gradle/ folder
delete .idea/ folder
delete ****.idea*** file
reopen Android Studio
import from gradle as Android Studio then suggests
I ran into a similar problem. Looks like my .../src directory for whatever reason moved under my .../lib directory. I moved it out of the /lib directory. Now both /lib and /src are at the same level. After a couple of clean rebuilds and restarts of Android studio everything is back to normal. My emulator started up fine.
You might want to check your directory structure. Compare the directory structure with a working project. You might be able to see the difference.
Moving my AndroidManifest.xml to PROJECT_NAME/src/main fixed the issue.
I had the same errormessage and noticed I had 2 MYPROJECTNAME.iml files, but with a different casing of MYPROJECTNAME. I created this situation after checking out from SVN the project into a directory with the casing error.
Just throw away the IML file with the wrong casing, after saving the content of both and use the content that works
I had this problem with a multi-module project when I renamed the app module. In my case to solve the problem I had to manually update the app module name in the project's settings.gradle file (Android Studio didn't update that value)
Happened to me. Found that i had wrongly opened the parent folder of the actual project in Android Studio.
In my case, it was my AndroidManifest.xml file, it was all messed up due to a new library that I added in my build.gradle.
So I took the AndroidManifest.xml from my latest commit on Git and I replaced it the current one, and also my settings.gradle was empty so I added include ':app'.
Hope it helps, and happy coding !
Facing same issue, resolve after adding the missing build.gradle file in root project.