Sass compiler error I don't understand. (Materialize CSS)

I’m getting this SASS compiler error which I don’t understand :

Change Detected...
_variables.scss
--------------------
Compiling Sass/Scss Files: 
e:\Projects\codingBlocks_materialize\materialize-src\sass\main.scss
e:\Projects\codingBlocks_materialize\materialize-src\sass\materialize.scss
--------------------
Compilation Error
Error: argument `$color` of `transparentize($color, $amount)` must be a color
        on line 50 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\components\_tabs.scss, in function `transparentize`
        from line 50 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\components\_tabs.scss
        from line 23 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\materialize.scss
        from line 1 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\main.scss
>>         background-color: transparentize($tabs-underline-color, .8);
 
   --------------------------^
 
--------------------
Compilation Error
Error: argument `$color` of `transparentize($color, $amount)` must be a color
        on line 50 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\components\_tabs.scss, in function `transparentize`
        from line 50 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\components\_tabs.scss
        from line 23 of sass/e:\Projects\codingBlocks_materialize\materialize-src\sass\materialize.scss
>>         background-color: transparentize($tabs-underline-color, .8);
 
   --------------------------^
 
--------------------
Watching...
--------------------

And all I havd done was to change some default color in materialize CSS library.

Here’s before :

// $primary-color: color("blue","base") !default;
// $primary-color-light: lighten($primary-color, 15%) !default;
// $primary-color-dark: darken($primary-color, 15%) !default;

// $secondary-color: color("lime","base") !default;
// $success-color: color("green", "base") !default;
// $error-color: color("red", "base") !default;
// $link-color: color("light-blue", "darken-1") !default;

Here’s after

$primary-color: ("teal","base") !default;
$primary-color-light: ("teal","lighten-3")!default;
$primary-color-dark: ("teal","darken-2") !default;

$secondary-color: color("lime","base") !default;
$success-color: color("green", "base") !default;
$error-color: color("red", "base") !default;
$link-color: color("light-blue", "darken-1") !default;

I thought I didn’t change much but from the error it gave me I think it cannot compile tabs underline color?

this is the tabs.scss file

.tabs {
  &.tabs-transparent {
    background-color: transparent;

    .tab a,
    .tab.disabled a,
    .tab.disabled a:hover {
      color: rgba(255,255,255,0.7);
    }

    .tab a:hover,
    .tab a.active {
      color: #fff;
    }

    .indicator {
      background-color: #fff;
    }
  }

  &.tabs-fixed-width {
    display: flex;

    .tab {
      flex-grow: 1;
    }
  }

  position: relative;
  overflow-x: auto;
  overflow-y: hidden;
  height: 48px;
  width: 100%;
  background-color: $tabs-bg-color;
  margin: 0 auto;
  white-space: nowrap;

  .tab {
    display: inline-block;
    text-align: center;
    line-height: 48px;
    height: 48px;
    padding: 0;
    margin: 0;
    text-transform: uppercase;

    a {
      &:focus,
      &:focus.active {
        background-color: transparentize($tabs-underline-color, .8);
        outline: none;
      }

      &:hover,
      &.active {
        background-color: transparent;
        color: $tabs-text-color;
      }

      color: rgba($tabs-text-color, .7);
      display: block;
      width: 100%;
      height: 100%;
      padding: 0 24px;
      font-size: 14px;
      text-overflow: ellipsis;
      overflow: hidden;
      transition: color .28s ease, background-color .28s ease;
    }

    &.disabled a,
    &.disabled a:hover {
      color: rgba($tabs-text-color, .4);
      cursor: default;
    }
  }
  .indicator {
    position: absolute;
    bottom: 0;
    height: 2px;
    background-color: $tabs-underline-color;
    will-change: left, right;
  }
}

// Fixed Sidenav hide on smaller
@media #{$medium-and-down} {
  .tabs {
    display: flex;

    .tab {
      flex-grow: 1;

      a {
        padding: 0 12px;
      }
    }
  }
}

this is the tabs.scss file I dont understand why

background-color: transparentize($tabs-underline-color, .8);

does not work.

nvm i’ve got it to work. I just checked the _variables.scss file and it worked.

https://imgflip.com/i/4719ot