`Unresolved reference: android` on new Flutter project
My first Flutter app seems to be debugging okay so far on my phone, but all of a sudden I'm seeing this error in my android/app/src/main/kotlin/my.appname.whatever/MainActivity file (screenshot below).
And when I rollover the onCreate, it shows this:
Cannot access class 'android.Os.Bundle'. Check your module classpath for missing or conflicting dependencies.
I'm using AndroidStudio 3.2.1
While trying to get Firebase going, I changed the version of this (it was 1.2.17 I think, but had a warning about it being different than the IDE, so I changed it to what it suggested and the warning went away). Even after trying to change it back, I'm still getting the warning below.
buildscript {
ext.kotlin_version = '1.3.11'
I assume this is something simple, but for someone very new to Android/Flutter...etc, I just don't have a clue where to look for the Unresolved reference: android, nor have any idea what I did to make it show up.
android kotlin 
flutter asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
add a comment |
My first Flutter app seems to be debugging okay so far on my phone, but all of a sudden I'm seeing this error in my android/app/src/main/kotlin/my.appname.whatever/MainActivity file (screenshot below).
And when I rollover the onCreate, it shows this:
Cannot access class 'android.Os.Bundle'. Check your module classpath for missing or conflicting dependencies.
I'm using AndroidStudio 3.2.1
While trying to get Firebase going, I changed the version of this (it was 1.2.17 I think, but had a warning about it being different than the IDE, so I changed it to what it suggested and the warning went away). Even after trying to change it back, I'm still getting the warning below.
buildscript {
ext.kotlin_version = '1.3.11'
I assume this is something simple, but for someone very new to Android/Flutter...etc, I just don't have a clue where to look for the Unresolved reference: android, nor have any idea what I did to make it show up.
android kotlin flutter asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
add a comment |
My first Flutter app seems to be debugging okay so far on my phone, but all of a sudden I'm seeing this error in my android/app/src/main/kotlin/my.appname.whatever/MainActivity file (screenshot below).
And when I rollover the onCreate, it shows this:
Cannot access class 'android.Os.Bundle'. Check your module classpath for missing or conflicting dependencies.
I'm using AndroidStudio 3.2.1
While trying to get Firebase going, I changed the version of this (it was 1.2.17 I think, but had a warning about it being different than the IDE, so I changed it to what it suggested and the warning went away). Even after trying to change it back, I'm still getting the warning below.
buildscript {
ext.kotlin_version = '1.3.11'
I assume this is something simple, but for someone very new to Android/Flutter...etc, I just don't have a clue where to look for the Unresolved reference: android, nor have any idea what I did to make it show up.
android kotlin flutter asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
My first Flutter app seems to be debugging okay so far on my phone, but all of a sudden I'm seeing this error in my android/app/src/main/kotlin/my.appname.whatever/MainActivity file (screenshot below).
And when I rollover the onCreate, it shows this:
Cannot access class 'android.Os.Bundle'. Check your module classpath for missing or conflicting dependencies.
I'm using AndroidStudio 3.2.1
While trying to get Firebase going, I changed the version of this (it was 1.2.17 I think, but had a warning about it being different than the IDE, so I changed it to what it suggested and the warning went away). Even after trying to change it back, I'm still getting the warning below.
buildscript {
ext.kotlin_version = '1.3.11'
I assume this is something simple, but for someone very new to Android/Flutter...etc, I just don't have a clue where to look for the Unresolved reference: android, nor have any idea what I did to make it show up.
android kotlin flutter android kotlin flutter asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
asked Dec 31 '18 at 23:27
DaveDave
22.7k1486151
22.7k1486151
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
There are a few things you can try:
open Android directory of your flutter project in android studio(new window). Then
- go to Build and select clean project. Then after this select Rebuild project.
- If above step doesn't solves your problem then go to file -> open -> select build.gradle to reopen and get the dependencies of project.
- go to project root directory and try flutter clean command this would clean the build/ and then try running your project by flutter run command.
This must resolve the dependency error. Hope it helps:)
answered Jan 1 at 5:03
John WickJohn Wick
34039
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
add a comment |
In my case, File -> Invalidate Caches / Restart worked. When Android Studio started back up, the issue was gone. Doesn't really answer the "why", but... it worked.
answered Jan 1 at 5:33
DaveDave
22.7k1486151
add a comment |
Configure to the project SDK to the appropriate API level as per your project will solve your issue(shown in the dialog after clicking Setup SDK at right corner).
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
There are a few things you can try:
open Android directory of your flutter project in android studio(new window). Then
- go to Build and select clean project. Then after this select Rebuild project.
- If above step doesn't solves your problem then go to file -> open -> select build.gradle to reopen and get the dependencies of project.
- go to project root directory and try flutter clean command this would clean the build/ and then try running your project by flutter run command.
This must resolve the dependency error. Hope it helps:)
answered Jan 1 at 5:03
John WickJohn Wick
34039
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
add a comment |
There are a few things you can try:
open Android directory of your flutter project in android studio(new window). Then
- go to Build and select clean project. Then after this select Rebuild project.
- If above step doesn't solves your problem then go to file -> open -> select build.gradle to reopen and get the dependencies of project.
- go to project root directory and try flutter clean command this would clean the build/ and then try running your project by flutter run command.
This must resolve the dependency error. Hope it helps:)
answered Jan 1 at 5:03
John WickJohn Wick
34039
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
add a comment |
There are a few things you can try:
open Android directory of your flutter project in android studio(new window). Then
- go to Build and select clean project. Then after this select Rebuild project.
- If above step doesn't solves your problem then go to file -> open -> select build.gradle to reopen and get the dependencies of project.
- go to project root directory and try flutter clean command this would clean the build/ and then try running your project by flutter run command.
This must resolve the dependency error. Hope it helps:)
answered Jan 1 at 5:03
John WickJohn Wick
34039
There are a few things you can try:
open Android directory of your flutter project in android studio(new window). Then
- go to Build and select clean project. Then after this select Rebuild project.
- If above step doesn't solves your problem then go to file -> open -> select build.gradle to reopen and get the dependencies of project.
- go to project root directory and try flutter clean command this would clean the build/ and then try running your project by flutter run command.
This must resolve the dependency error. Hope it helps:)
answered Jan 1 at 5:03
John WickJohn Wick
34039
answered Jan 1 at 5:03
John WickJohn Wick
34039
answered Jan 1 at 5:03
John WickJohn Wick
34039
answered Jan 1 at 5:03
John WickJohn Wick
34039
34039
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
add a comment |
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
In Android Studio 3.2.1, there is no "Build->clean project" nor an option to "Rebuild project". Unless it's in another menu and I just don't see it?
– Dave
Jan 1 at 5:28
add a comment |
In my case, File -> Invalidate Caches / Restart worked. When Android Studio started back up, the issue was gone. Doesn't really answer the "why", but... it worked.
answered Jan 1 at 5:33
DaveDave
22.7k1486151
add a comment |
In my case, File -> Invalidate Caches / Restart worked. When Android Studio started back up, the issue was gone. Doesn't really answer the "why", but... it worked.
answered Jan 1 at 5:33
DaveDave
22.7k1486151
add a comment |
In my case, File -> Invalidate Caches / Restart worked. When Android Studio started back up, the issue was gone. Doesn't really answer the "why", but... it worked.
answered Jan 1 at 5:33
DaveDave
22.7k1486151
In my case, File -> Invalidate Caches / Restart worked. When Android Studio started back up, the issue was gone. Doesn't really answer the "why", but... it worked.
answered Jan 1 at 5:33
DaveDave
22.7k1486151
answered Jan 1 at 5:33
DaveDave
22.7k1486151
answered Jan 1 at 5:33
DaveDave
22.7k1486151
answered Jan 1 at 5:33
DaveDave
22.7k1486151
22.7k1486151
add a comment |
add a comment |
Configure to the project SDK to the appropriate API level as per your project will solve your issue(shown in the dialog after clicking Setup SDK at right corner).
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
add a comment |
Configure to the project SDK to the appropriate API level as per your project will solve your issue(shown in the dialog after clicking Setup SDK at right corner).
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
add a comment |
Configure to the project SDK to the appropriate API level as per your project will solve your issue(shown in the dialog after clicking Setup SDK at right corner).
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
Configure to the project SDK to the appropriate API level as per your project will solve your issue(shown in the dialog after clicking Setup SDK at right corner).
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
answered Jan 26 at 15:25
Rohit GurjarRohit Gurjar
182210
182210
add a comment |
add a comment |
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