Why am I getting a 'cannot resolve symbol' error?

Question

I cannot see why I'm getting this error? I'm certain my Gradle file and java class are up to par. Class and gradle file posted below. Also, I have no errors in my XML files.

What I have done already:

File > Invalid Caches/Restart

Build > Clean Project

Build > Rebuild Project Restart computer

These are the things that were suggested to do throughout the web but none of them worked.

SplashActivity.java

package com.apress.gerber.currencies;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class SplashActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
 // Letter "R" is red 
    setContentView(R.layout.activity_splash2); 
   }
}

build.gradle

apply plugin: 'com.android.application'

android {
       compileSdkVersion 25
       buildToolsVersion '25.0.1'
       useLibrary 'org.apache.http.legacy' // newly added
  defaultConfig {
    applicationId "com.apress.gerber.currencies"
    minSdkVersion 9
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
       }
     }
  }

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
// newly added
compile 'org.apache.httpcomponents:httpclient-android:4.3.5.1'
// newly added
provided 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:<version number>'
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.0.1'
testCompile 'junit:junit:4.12'
}

Your question would be answerable if you told us exactly what symbol could not be resolved. Please copy and paste the text of whatever error message you are seeing. — Ken Y-N, Dec 02 '16 at 04:15
@KenY-N I wrote down what symbols cannot be resolved as comments if you check my java class again :) — nanoSecond24, Dec 02 '16 at 04:18
You haven't imported either of the two values you say are red — OneCricketeer, Dec 02 '16 at 04:19
@quicklearner There aren't any log messages. The only thing that's happening is the words that have been indicated as comments in my java class are the symbols that cannot be resolved, these symbols are red. — nanoSecond24, Dec 02 '16 at 04:19
You should let Android Studio do it. I believe Alt + Enter opens the quick fix window — OneCricketeer, Dec 02 '16 at 04:21
Alternatively, open up MainActivity and look at those imports — OneCricketeer, Dec 02 '16 at 04:22
@cricket_007 Ok I pressed Alt + Enter & now the word Window isn't red in Window.FEATURE_NO_TITLE anymore. Now the only thing that's left that's red is the `R` letter. — nanoSecond24, Dec 02 '16 at 04:24
Most of the times this error is because of problems in XML. did you compile your app? — drulabs, Dec 02 '16 at 04:26
@drulabs I tried compiling it but it didn't let me. I'm assuming it didn't let me because I cannot resolve the `R` symbol (it's red). — nanoSecond24, Dec 02 '16 at 04:43
@drulabs If you check my original post, I've indicated that I've done that already :) — nanoSecond24, Dec 02 '16 at 12:44

score 0 · Answer 1 · edited May 23 '17 at 11:53

0

Import those classes

import android.view.Window;
import com.apress.gerber.currencies.R;

If the R still cannot resolve, then you do have an error within your resources, not just the XML.

Lots of answers here "cannot resolve symbol R" in Android Studio

edited May 23 '17 at 11:53

Community

1
1

answered Dec 02 '16 at 04:24

OneCricketeer

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My `R` is still red for some reason :0 – nanoSecond24 Dec 02 '16 at 04:26
My edit explains why. It's hard to help with that without seeing all the resources you have, and their contents. – OneCricketeer Dec 02 '16 at 04:27
I've seen that link before, it was no help for my case. – nanoSecond24 Dec 02 '16 at 04:42
I'm so lost with this, I've been stuck on this problem for way too long. It's preventing me from moving forward, I can't even run my app :( – nanoSecond24 Dec 02 '16 at 04:53
Yeah it did, actually. – nanoSecond24 Dec 02 '16 at 05:13
Okay, then either your Manifest or `R.layout.activity_splash2` got messed up – OneCricketeer Dec 02 '16 at 05:15

Why am I getting a 'cannot resolve symbol' error?

1 Answers1