打开'build.Gradle'时,出现 R 文件错误。我在文件中找到了它,所有库都消失了。
我试图清除缓存并重新启动android studio。
请从这种情况下帮助我。
/*
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.api.artifacts;
/**
* Unsuccessfully resolved dependency.
*/
public interface UnresolvedDependency {
/**
* The module selector of the dependency.
*
* @since 1.1-rc-1
*/
ModuleVersionSelector getSelector();
/**
* the exception that is the cause of unresolved state
*/
Throwable getProblem();
}
答案 0 :(得分:0)
android.enableBuildCache=false
gradle属性。
或尝试
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}