If the class can't be found, something is wrong with your gwt-dev, or the gwt-dev isn't on the classpath, or more details from the error message will indicate why the Compiler class couldn't be loaded.
Please file a bug with more details (logs, full error message, other details about differences between the working computer and non-working computer) at https://github.com/gwt-plugins/gwt-eclipse-plugin/ so contributors there can take a closer look?
On Sunday, July 2, 2023 at 2:28:44 PM UTC-5 jiny...@gmail.com wrote:
I tried to reinstall Eclipse again and GWT 3 plugin again from Eclipse market, downloaded and reinstalled gwt 2.9 for the project, however, I still encountered the error below.
It is so weird, the project configuration in eclipse works in my old laptop, not in the new one though it both has windows 10 installed.
Error: Could not find or load main class com.google.gwt.dev.Compilereclipse-jee-2020-06-R-win32-x86_64GWT Plugin 3.0gwt-2.9.0Please see attached for the java build path dialog in eclipse.Any idea about resolving this error? Please help shed some light on this problem.Your help is much appreciated!JennyOn Friday, June 16, 2023 at 3:25:42 PM UTC-5 Ying Jin wrote:Thanks for your reply. Please see attached for the GWT lib specified in the java build path in Eclipse. I tried to compile it with JDK 8 and it didn't work either.The same project configuration in Eclipse worked in my old laptop, but not in my new laptop. The Eclipse in the new laptop is a copy of the Eclipse installed in the old laptop.In addition, I also tried to copy the "gwt-dev.jar" from the old laptop to the new one, but the compilation still gave me the following error.Error: Could not find or load main class com.google.gwt.dev.CompilerThe project was compiled by using GWT->Compile option provided by the GWT Plugin installed in Eclipse.Version: 2020-06 (4.16.0)GWT Plugin version: 3.0Your help is greatly appreciated!thanks,JennyOn Friday, June 16, 2023 at 12:33:18 PM UTC-5 Colin Alworth wrote:GWT 2.9 should support running on Java 11, both running on JDK 11 and compiling Java 11 sources.Without other information, it sounds like there is a problem with your copy of gwt-dev.jar - the jar might be corrupt, or somehow not on your classpath?Can you verify that the jar is present and correct, and share more specifics of how you are building?On Thursday, June 15, 2023 at 6:00:43 PM UTC-5 jiny...@gmail.com wrote:Hello,I tried to compile our GWT 2.9 project with JDK 11, but encountered the following error:Error: Could not find or load main class com.google.gwt.dev.CompilerCaused by: java.lang.ClassNotFoundException: com.google.gwt.dev.CompilerBTW, the Eclipse version is Version: 2020-06 (4.16.0).Please help shed some lights on this issue.thanks,Jenny
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