Question 1: You may not have the JAVA runtime installed, so you can't sign it.

The signature of Chinese APK requires java, and there are many instructions on downloading, installing and configuring java on the Internet.

To add: when you run the signing tool after installation, you are still prompted "You may not have installed the JAVA runtime, so you can't sign it", because the previous JDK installation steps have been installed, so we need to install JRE and choose the appropriate installation package according to your system. At this point, the java runtime did not solve any problems.

Question 2: Signature failed. The file path can contain spaces and Chinese. Please move the software and the software to be signed to the root directory of drive C for signature.

Many people will put the apk file to be signed in the root directory of drive C, but it still won't work. Pay attention to the tips.

You need to put the signature software in the root directory of drive C, and the APK file name cannot contain spaces and Chinese characters. Then run the software and click the "Signature" menu.

0-byte software after apk signature.

Check whether there is a file named in Chinese in your apk file, and the English name cannot appear, otherwise the successful signature will be 0 bytes.