Solutions:

Check the cocoapods local library path: Pod repo

$ pod repo
master
- Type: git (master)
- URL:  https://github.com/CocoaPods/Specs.git
- Path: /Users/ammk/.cocoapods/repos/master

1 repo
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Find ~/.cocoapods/repos/ master-iname libwebp

The find ~ /. Cocoapods/repos/master -iname libwebp output/Users/ammk /. Cocoapods/repos/master/Specs / 1/9/2 / libwebpCopy the code

Libwebp libwebp

$ cd ~/.cocoapods/repos/master/Specs/1/9/2/libwebp
$ ls -lTotal 0 DRWXr-XR-x 3 HuanghaIPO Staff 96 9 5 2017 0.4.1 DRWXr-xr-x 3 HuanghaIPO Staff 96 9 5 2017 0.4.2 DRWXR-Xr-x 3 Huanghaipo Staff 96 9 5 2017 0.4.3 DRWXr-XR-X 3 HuanghaIPO Staff 96 9 5 2017 0.4.4 DRWXR-XR-X 3 HuanghaIPO Staff 96 9 5 2017 0.5.0 DRWxr-XR-x 3 HuanghaIPO Staff 96 9 5 2017 0.5.1 DRWxr-xr-x 3 HuanghaIPO Staff 96 9 5 2017 0.5.2 DRWXr-xr-x 3 Huanghaipo Staff 96 9 5 2017 0.6.0 DRWxr-XR-X 3 HuanghaIPO Staff 96 4 12 2018 0.6.1 DRWXR-XR-x 3 HuanghaIPO Staff 96 2 14 17:59 1.0.0 drwxr-xr-x 3 HuanghaIPO Staff 96 5 29 2019 1.0.1 DRwxr-xr-x 3 HuanghaIPO Staff 96 2 17 10:09 1.0.2 Drwxr-xr-x 4 HuanghaIPO Staff 128 2 17 10:09 1.0.3 DRWxr-xr-x 3 HuanghaIPO Staff 96 2 17 10:09 1.1.0 drWXr-xr-x 3 Huanghaipo Staff 96 2 17 10:09 1.1.0- RC2Copy the code

Go to 1.1.0 and modify the homepage in the libwebp.podspec.json file source->git.

$ cd1.1.0 $ls-l
total 8
-rw-r--r--  1 huanghaipo  staff  1854  2 17 10:09 libwebp.podspec.json
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Modify the

$ sudo vim libwebp.podspec.json 
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Change the homepage to https://github.com/webmproject/, the source – > https://github.com/webmproject/libwebp.git instead of git

"name": "libwebp"."version": "1.0.0"."summary": "Library to encode and decode images in WebP format."."homepage": "https://developers.google.com/speed/webp/"."authors": "Google Inc."."license": {
    "type": "BSD"."file": "COPYING"
  },
  "source": {
    "git": "https://chromium.googlesource.com/webm/libwebp"."tag": "v1.0.0"
  },
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Then go to the project directory and run pod Install

Back again to execute the pod surface error, install or the newspaper. Check under the master libwebp podspec. The json file is normal. There is still a problem with the trunk source, but you can download it. Finally, run pod repo remove trunk to delete the trunk source and run pod install. OK