GWT从2.1升级到2.4 [英] GWT upgrade from 2.1 to 2.4

问题描述

从GWT 2.1编译到2.4时，显示以下错误:

while compiling from GWT 2.1 to 2.4, the following error is shown:

找到了com.google.gwt.core.ext.typeinfo.JClassType接口，但期望使用类

Found interface com.google.gwt.core.ext.typeinfo.JClassType, but class was expected

请为我提供解决此问题的方法.

so kindly provide me with the solution to this issue.

推荐答案

GWT 2.2中存在二进制向后不兼容(其中com.google.gwt.core.ext.typeinfo.JClassType等已从类更改为接口).您必须使用针对GWT 2.2 SDK或更高版本编译的第三方依赖项来更新您的第三方依赖项；对于您自己的库，或者如果第三方库已被遗弃，则必须重新编译(javac).

There's a binary backwards-incompatibility in GWT 2.2 (where com.google.gwt.core.ext.typeinfo.JClassType et al. were changed from classes to interfaces). You have to update your third-party dependencies with ones that have been compiled against the GWT 2.2 SDK or a newer version; for your own library or if the third-party lib has been somewhat abandoned, you'll have to recompile it (javac).

GIN 提供了其1.5版的2种版本:一种与GWT兼容2.1.1和更早的版本，以及一个与2.2兼容的版本(gwt-1.5.zip下载中有两个不同的JAR).

GIN for example provides 2 builds of its 1.5 release: one compatible with GWT 2.1.1 and older, and one compatible with 2.2 onwards (there are two distinct JARs in the gwt-1.5.zip download).

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