screenshots command not found

[sc-bl]

When I try to run 'screenshots', the terminal throws an error

I followed all the instructions for installation under: https://pub.dev/packages/screenshots#-installing-tab-

I did 'flutter pub global activate screenshots' without any errors
Then I did 'screenshots' with following error:
/Developer/flutter/.pub-cache/bin/screenshots: line 7: dart: command not found

What did I do wrong?

---

Here is my flutter doctor output:
[✓] Flutter (Channel stable, v1.17.4, on Mac OS X 10.14.6 18G95, locale de-DE)
• Flutter version 1.17.4 at /Developer/flutter
• Framework revision 1ad9baa8b9 (13 days ago), 2020-06-17 14:41:16 -0700
• Engine revision ee76268252
• Dart version 2.8.4

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /Users/scbl/Library/Android/sdk
• Platform android-29, build-tools 29.0.2
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.2.1, Build version 11B500
• CocoaPods version 1.8.4

[✓] Android Studio (version 4.0)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 45.1.1
• Dart plugin version 192.8052
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] VS Code (version 1.46.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.12.0

[✓] Connected device (2 available)
• rk3288 • YQX2O3VIVK • android-arm • Android 8.1.0 (API 27)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

• No issues found!

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And here is the output from 'flutter pub global activate screenshots':
Package screenshots is currently active at version 2.1.1.
Resolving dependencies...

• archive 2.0.13
• args 1.6.0
• charcode 1.1.3
• collection 1.14.13
• convert 2.1.1
• crypto 2.1.5
• file 5.2.1
• intl 0.16.1
• meta 1.1.8
• path 1.7.0
• platform 2.2.1
• process 3.0.13
• pub_cache 0.2.3
• pub_semver 1.4.4
• resource 2.1.7
• screenshots 2.1.1
• source_span 1.7.0
• string_scanner 1.0.5
• term_glyph 1.1.0
• tool_base 1.9.5+3
• tool_mobile 1.9.5+1
• typed_data 1.2.0
• yaml 2.2.1
  Precompiling executables...
  Precompiled screenshots:main.
  Installed executable screenshots.
  Activated screenshots 2.1.1.

[sc-bl]

Update:
I am still getting the exact same error.
This time i followed instructions from: https://medium.com/@nocnoc/automated-screenshots-for-flutter-f78be70cd5fd.

I updated homebrew,
I reinstalled imagemagick,
I ran pub global activate screenshots,
I added screenshots package to dev_dependencies

The when i try to run screenshots, the same error appears:
/Developer/flutter/.pub-cache/bin/screenshots: line 7: dart: command not found

[jayantkatia]

Pub installs executables into $HOME/.pub-cache/bin, which is not on your path.
You can fix that by adding this to your shell's config file (.bashrc, .bash_profile, etc.):
export PATH="$PATH":"$HOME/.pub-cache/bin"

Try the following in terminal, it will temporarily export ,after which do the above mentioned if it works for you::
pub global activate screenshots
export PATH="$PATH":"$HOME/.pub-cache/bin"
screenshots