小编Dhr*_*kar的帖子

我尝试在stackoverflow上查找其他类似的问题,他们建议我们改变版本的"buildToolsVersion",但我在gradle文件中看不到这样的单词.

我的Gradle文件(PROJECT): -

buildscript {

repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.2'


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}
}

allprojects {
repositories {
    google()
    jcenter()
}
}

task clean(type: Delete) {
delete rootProject.buildDir
}

我的build.gradle(模块:app):这是我的第二个gradle文件

     apply plugin: 'com.android.application'

 android {
 compileSdkVersion 28
 defaultConfig {
    applicationId "com.example.dhruv.testhello"
    minSdkVersion 15
    targetSdkVersion 28
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner 
 "android.support.test.runner.AndroidJUnitRunner"
 }
 buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), …

我准备了一个代码来在 SQLITE ANDROID STUDIO 中创建数据库和表，但是我在 SQL 语句中遇到错误。

错误图像在这里：-错误图像

package com.example.thakkar.registration;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.view.View;

public class DataBaseHelper extends SQLiteOpenHelper {

public static final String DATABASAE_NAME="student.db";
public static final String TABLE_NAME="student_table";
public static final String COL_1="NAME";
public static final String COL_2="EMAIL";
public static final String COL_3="PASSWORD";



public DataBaseHelper(Context context) {
    super(context, DATABASAE_NAME, null, 1);

    SQLiteDatabase db=this.getWritableDatabase();

}

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("create table"+ TABLE_NAME+ "(NAME TEXT,EMAIL TEXT,PASSWORD TEXT)");

}

@Override
public void onUpgrade(SQLiteDatabase …