java.lang.Error: Unresolved compilation problems:   Syntax error on token "return", delete this token  Type mismatch: cannot convert from Init to String Dubbo 在调用服务时候报的错误! 那么问题来了.这什么错? ? 英语不好.     Type mismatch: cannot convert from Init to Strin…

完整的错误信息: Description Resource Path Location TypeType mismatch: cannot convert from Enumeration<String> to Enumeration<Object> ResponseHeaderFilter.java /dwz-java/src/dwz/common/util line 46 Java Problem 解决的方法: watermark/2/text/aHR0cDovL2Jsb2cu…

问题描述: 一个非常简单的spring项目,用静态工厂方法配置bean实例.项目的目录结构如下: 代码如下: Car.java package com.tt.spring.beans.factory; public class Car { private String brand; private double price; public String getBrand() { return brand; } public void setBrand(String brand) { this.b…

Connection.prepareStatement()函数出错,提示: Type mismatch: cannot convert from java.sql.PreparedStatement to com.mysql.jdbc.PreparedStatement 这是因为引入的包不对头, import com.mysql.jdbc.PreparedStatement; import com.mysql.jdbc.Statement; 引入正确的包就没有这个错误了. import java…

今天用到Cookie时,写了一个Cookie数组,发现报错“Type mismatch: cannot convert from javax.servlet.http.Cookie[] to org.apache.tomcat.util.http.parser.Cookie[]”,后来看导入的包,发现按提示直接导入的是“ import org.apache.tomcat.util.http.parser.Cookie ” ,将这个删除,改成 “import javax.servlet.http.…

首先放上我的源码,看看你的代码是不是我这个类似的. @Test void predicateTest() throws Exception { List<String> languages = Arrays.asList("Java", "Scala", "C++", "Haskell", "Lisp"); System.out.println("Languages which sta…

源码: FragmentTransaction mFragmentTranscation = getSupportFragmentManager().beginTransaction(); Fragment mMainFragment = new MainFragment();//此行提示出错 mFragmentTranscation.replace(R.id.container, mMainFragment); mFragmentTranscation.commit(); 错误提示:无法将Ma…

Type mismatch: cannot convert from java.sql.PreparedStatement to com.mysql.jdbc.PreparedStatement import java.sql.PreparedStatement; java连接数据库的问题:Type mismatch: cannot convert from ResultSet to ResultSet 包导入错了,你要导入的是import java.sql.ResultSet;…

报错: TypeError: Fetch argument 0.484375 has invalid type <class 'numpy.float32'>, must be a string or Tensor. (Can not convert a float32 into a Tensor or Operation.) 出错代码: _, summaries, acc, loss = sess.run([train_step, train_summary_op, acc, cost],…

一个问题引发的血案: 用python向redis写入数据报错: redis.exceptions.DataError: Invalid input of type: 'dict'. Convert to a byte, string or number first. 查看redis的版本: pip3 freeze 显示现在的redis版本是: redis==3.2.1 对redis降版: pip3 install -U redis==2.10.6 #将当前版本降级到2.10.6 成功写入数据.…