Android Having Problems While Uploading Images Using Retrofit Multipart?

I'm getting the following error while trying to upload an Image to a server using retrofit, the api receives a header authorization token, _method = 'put' and image = 'imageName.jp

Solution 1:

For Below Android 6.0 Marshmallow :

Add Permission in Manifest :

   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

For Marshmallow and Above Device's:

    public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback{

  private static final int REQUEST_WRITE_PERMISSION = 786;

  @Override
  public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    if (requestCode == REQUEST_WRITE_PERMISSION && grantResults[0] == PackageManager.PERMISSION_GRANTED) {            
        openFilePicker();//do your job
    }
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    requestPermission();
  }

  private void requestPermission() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        requestPermissions(new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_WRITE_PERMISSION);
    } else {
        openFilePicker();//do your job
    }
  }
}

For more info see below link's

Android 6.0 Marshmallow. Cannot write to SD Card

Read and Write permission for storage and gallery usage for marshmallow

Note: Do not forget to add permission in manifest file

Solution 2:

Add this

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

inside the manifest tag of your manifest file.Makes sure its outside the application tag however.