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Home/ Questions/Q 3987898
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T06:11:19+00:00 2026-05-20T06:11:19+00:00

when I am signing the apk, I get jarsigner: unable to sign jar: java.util.zip.ZipException:

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when I am signing the apk, I get “jarsigner: unable to sign jar: java.util.zip.ZipException: invalid entry compressed size (expected 463 but got 465 bytes)” this error message. The apk size is almost 1MB. When I reduce the size to 500KB, signing success. Why this so?..Any Idea?

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  1. Editorial Team
    Editorial Team
    2026-05-20T06:11:19+00:00Added an answer on May 20, 2026 at 6:11 am

    You are trying to sign an already signed .apk.
    You need to export an unsigned .apk file and then sign it with jarsigner.

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