我已经关注了 mac android 入门，但是当我运行 android 时它失败并出现以下错误。我试图在网上找到答案，但似乎找不到解决方案。我已经确保我的机器上安装了正确的 java jdk8，但我仍然收到此错误。任何意见是极大的赞赏!
> startup failed:
General error during semantic analysis: Unsupported class file major version 57
java.lang.IllegalArgumentException: Unsupported class file major version 57
at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:184)
at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:166)
at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:152)
at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:273)
at org.codehaus.groovy.ast.decompiled.AsmDecompiler.parseClass(AsmDecompiler.java:81)
at org.codehaus.groovy.control.ClassNodeResolver.findDecompiled(ClassNodeResolver.java:254)
at org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:192)
at org.codehaus.groovy.control.ClassNodeResolver.findClassNode(ClassNodeResolver.java:172)
at org.codehaus.groovy.control.ClassNodeResolver.resolveName(ClassNodeResolver.java:128)
at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveClassNullable(AsmReferenceResolver.java:59)
at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveClass(AsmReferenceResolver.java:46)
at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveNonArrayType(AsmReferenceResolver.java:81)
at org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveType(AsmReferenceResolver.java:72)
at org.codehaus.groovy.ast.decompiled.MemberSignatureParser.createMethodNode(MemberSignatureParser.java:55)
at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.lazyInitMembers(DecompiledClassNode.java:195)
at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.getDeclaredMethods(DecompiledClassNode.java:121)
at org.codehaus.groovy.ast.ClassNode.getMethods(ClassNode.java:912)
at org.codehaus.groovy.ast.ClassNode.tryFindPossibleMethod(ClassNode.java:1280)
at org.codehaus.groovy.control.StaticImportVisitor.transformMethodCallExpression(StaticImportVisitor.java:252)
at org.codehaus.groovy.control.StaticImportVisitor.transform(StaticImportVisitor.java:112)
at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitExpressionStatement(ClassCodeExpressionTransformer.java:144)
at org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:42)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:110)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:121)
at org.codehaus.groovy.ast.ClassCodeExpressionTransformer.visitConstructorOrMethod(ClassCodeExpressionTransformer.java:55)
at org.codehaus.groovy.control.StaticImportVisitor.visitConstructorOrMethod(StaticImportVisitor.java:88)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructor(ClassCodeVisitorSupport.java:128)
at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1099)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:54)
at org.codehaus.groovy.control.StaticImportVisitor.visitClass(StaticImportVisitor.java:82)
at org.codehaus.groovy.control.CompilationUnit$14.call(CompilationUnit.java:717)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1095)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:649)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:627)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:604)
at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:390)
at groovy.lang.GroovyClassLoader.access$300(GroovyClassLoader.java:89)
at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:330)
at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:327)
at org.codehaus.groovy.runtime.memoize.ConcurrentCommonCache.getAndPut(ConcurrentCommonCache.java:147)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:325)
at org.gradle.groovy.scripts.internal.DefaultScriptCompilationHandler.compileScript(DefaultScriptCompilationHandler.java:133)
at org.gradle.groovy.scripts.internal.DefaultScriptCompilationHandler.compileToDir(DefaultScriptCompilationHandler.java:93)
at org.gradle.groovy.scripts.internal.BuildOperationBackedScriptCompilationHandler$2.run(BuildOperationBackedScriptCompilationHandler.java:54)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.groovy.scripts.internal.BuildOperationBackedScriptCompilationHandler.compileToDir(BuildOperationBackedScriptCompilationHandler.java:51)
开发环境:
Mac 操作系统 x 10.15
最佳答案
我在运行时遇到同样的问题 gradle build .根据谷歌和github的搜索。我找到了 gradle当前版本(5.x.x)不支持jdk 13。最后6.x版本支持了，但是还没有发布，所以只好把jdk版本降级到12.x。
将 java 降级到 12
https://www.jverdeyen.be/mac/downgrade-brew-cask-application/
brew cask uninstall adoptopenjdk # uninstall jdk version 13.x
brew tap AdoptOpenJDK/openjdk
brew cask install adoptopenjdk12
关于react-native - 安卓启动问题。不受支持的类文件主要版本 57，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58345916/