Can't install Lerna!

Hello, I’m facing some issues with lerna installation.

Expected Behavior

Lerna is installed and can be used

Current Behavior

An error occurs when I try to install lerna and I can’t use it.

Steps to Reproduce (for bugs)

1. npm i -g lerna

npm-debug.log

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   '/usr/local/bin/node',
1 verbose cli   '/usr/local/bin/npm',
1 verbose cli   'i',
1 verbose cli   '--global',
1 verbose cli   'lerna@3.18.3'
1 verbose cli ]
2 info using npm@6.12.0
3 info using node@v13.0.1
4 verbose npm-session 6f97f9740302339a
5 silly install loadCurrentTree
6 silly install readGlobalPackageData
7 http fetch GET 304 https://registry.npmjs.org/lerna 2483ms (from cache)
8 silly pacote version manifest for lerna@3.18.3 fetched in 2500ms
9 timing stage:loadCurrentTree Completed in 2509ms
10 silly install loadIdealTree
11 silly install cloneCurrentTreeToIdealTree
12 timing stage:loadIdealTree:cloneCurrentTree Completed in 0ms
13 silly install loadShrinkwrap
14 timing stage:loadIdealTree:loadShrinkwrap Completed in 1ms
15 silly install loadAllDepsIntoIdealTree
16 silly resolveWithNewModule lerna@3.18.3 checking installable status
17 http fetch GET 200 https://registry.npmjs.org/@lerna%2fdiff 20ms (from cache)
18 http fetch GET 200 https://registry.npmjs.org/@lerna%2fcli 23ms (from cache)
19 http fetch GET 200 https://registry.npmjs.org/@lerna%2fimport 19ms (from cache)
20 http fetch GET 200 https://registry.npmjs.org/@lerna%2finit 20ms (from cache)
21 http fetch GET 200 https://registry.npmjs.org/@lerna%2fclean 26ms (from cache)
22 http fetch GET 200 https://registry.npmjs.org/@lerna%2fcreate 26ms (from cache)
23 http fetch GET 200 https://registry.npmjs.org/@lerna%2fbootstrap 29ms (from cache)
24 silly pacote version manifest for @lerna/diff@3.18.0 fetched in 27ms
25 silly resolveWithNewModule @lerna/diff@3.18.0 checking installable status
26 silly pacote version manifest for @lerna/cli@3.18.0 fetched in 30ms
27 silly resolveWithNewModule @lerna/cli@3.18.0 checking installable status
28 silly pacote version manifest for @lerna/import@3.18.0 fetched in 29ms
29 silly resolveWithNewModule @lerna/import@3.18.0 checking installable status
30 silly pacote version manifest for @lerna/init@3.18.0 fetched in 27ms
31 silly resolveWithNewModule @lerna/init@3.18.0 checking installable status
32 silly pacote version manifest for @lerna/clean@3.18.0 fetched in 35ms
33 silly resolveWithNewModule @lerna/clean@3.18.0 checking installable status
34 silly pacote version manifest for @lerna/create@3.18.0 fetched in 34ms
35 silly resolveWithNewModule @lerna/create@3.18.0 checking installable status
36 silly pacote version manifest for @lerna/bootstrap@3.18.0 fetched in 39ms
37 silly resolveWithNewModule @lerna/bootstrap@3.18.0 checking installable status
38 http fetch GET 200 https://registry.npmjs.org/@lerna%2flink 18ms (from cache)
39 http fetch GET 200 https://registry.npmjs.org/@lerna%2flist 19ms (from cache)
40 http fetch GET 200 https://registry.npmjs.org/@lerna%2fpublish 18ms (from cache)
41 silly fetchPackageMetaData error for @lerna/publish@3.18.3 Unexpected end of JSON input while parsing near '...7.1","@lerna/run-life'
42 silly pacote version manifest for @lerna/link@3.18.0 fetched in 23ms
43 silly resolveWithNewModule @lerna/link@3.18.0 checking installable status
44 silly pacote version manifest for @lerna/list@3.18.0 fetched in 22ms
45 silly resolveWithNewModule @lerna/list@3.18.0 checking installable status
46 http fetch GET 304 https://registry.npmjs.org/npmlog 636ms (from cache)
47 silly pacote range manifest for npmlog@^4.1.2 fetched in 637ms
48 silly resolveWithNewModule npmlog@4.1.2 checking installable status
49 http fetch GET 304 https://registry.npmjs.org/import-local 666ms (from cache)
50 silly pacote range manifest for import-local@^2.0.0 fetched in 668ms
51 silly resolveWithNewModule import-local@2.0.0 checking installable status
52 http fetch GET 304 https://registry.npmjs.org/@lerna%2fadd 718ms (from cache)
53 silly pacote version manifest for @lerna/add@3.18.0 fetched in 721ms
54 silly resolveWithNewModule @lerna/add@3.18.0 checking installable status
55 http fetch GET 304 https://registry.npmjs.org/@lerna%2fversion 697ms (from cache)
56 silly pacote version manifest for @lerna/version@3.18.3 fetched in 698ms
57 silly resolveWithNewModule @lerna/version@3.18.3 checking installable status
58 http fetch GET 304 https://registry.npmjs.org/@lerna%2fexec 813ms (from cache)
59 silly pacote version manifest for @lerna/exec@3.18.0 fetched in 814ms
60 silly resolveWithNewModule @lerna/exec@3.18.0 checking installable status
61 http fetch GET 304 https://registry.npmjs.org/@lerna%2frun 1693ms (from cache)
62 silly pacote version manifest for @lerna/run@3.18.0 fetched in 1695ms
63 silly resolveWithNewModule @lerna/run@3.18.0 checking installable status
64 http fetch GET 304 https://registry.npmjs.org/@lerna%2fchanged 1948ms (from cache)
65 silly pacote version manifest for @lerna/changed@3.18.3 fetched in 1950ms
66 silly resolveWithNewModule @lerna/changed@3.18.3 checking installable status
67 timing stage:rollbackFailedOptional Completed in 0ms
68 timing stage:runTopLevelLifecycles Completed in 4472ms
69 verbose stack SyntaxError: Unexpected end of JSON input while parsing near '...7.1","@lerna/run-life'
69 verbose stack     at JSON.parse (<anonymous>)
69 verbose stack     at parseJson (/usr/local/lib/node_modules/npm/node_modules/json-parse-better-errors/index.js:7:17)
69 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/node-fetch-npm/src/body.js:96:50
69 verbose stack     at processTicksAndRejections (internal/process/task_queues.js:93:5)
70 verbose cwd /Volumes/Workspace/pets/cast-calls/cast-calls
71 verbose Darwin 19.0.0
72 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "i" "--global" "lerna@3.18.3"
73 verbose node v13.0.1
74 verbose npm  v6.12.0
75 error Unexpected end of JSON input while parsing near '...7.1","@lerna/run-life'
76 verbose exit [ 1, true ]

Executable	Version
lerna --version	can’t install
npm --version	6.12.0
node --version	13.0.1

OS	Version
macOS Catalina	10.15 (19A583)

[evocateur]

You need to clear your global npm cache, it would seem. https://docs.npmjs.com/cli/cache.html

[MikeYermolayev]

yep. just did it and it helped me. Thanks